VAR-202012-1546

Vulnerability from variot - Updated: 2024-07-23 20:50

A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b. Linux Kernel contains a resource locking vulnerability and a freed memory usage vulnerability. Vendors must CID-54ffccbf053b It is published as.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state.

Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in.

Bug fix:

RHACM 2.0.8 images (BZ #1915461)
Solution:

Before applying this update, make sure all previously released errata relevant to your system have been applied. Bugs fixed (https://bugzilla.redhat.com/):

1915461 - RHACM 2.0.8 images 1921650 - CVE-2021-3121 gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation

8.1) - ppc64le, x86_64
Description:

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

===================================================================== Red Hat Security Advisory

Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2021:0857-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0857 Issue date: 2021-03-16 CVE Names: CVE-2019-19532 CVE-2020-0427 CVE-2020-7053 CVE-2020-14351 CVE-2020-25211 CVE-2020-25645 CVE-2020-25656 CVE-2020-25705 CVE-2020-28374 CVE-2020-29661 CVE-2021-20265 =====================================================================

Summary:

An update for kernel-rt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Relevant releases/architectures:

Red Hat Enterprise Linux for Real Time (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64

Description:

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)
kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)
kernel: malicious USB devices can lead to multiple out-of-bounds write (CVE-2019-19532)
kernel: out-of-bounds reads in pinctrl subsystem. (CVE-2020-0427)
kernel: use-after-free in i915_ppgtt_close in drivers/gpu/drm/i915/i915_gem_gtt.c (CVE-2020-7053)
kernel: performance counters race condition use-after-free (CVE-2020-14351)
kernel: Geneve/IPsec traffic may be unencrypted between two Geneve endpoints (CVE-2020-25645)
kernel: use-after-free in read in vt_do_kdgkb_ioctl (CVE-2020-25656)
kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705)
kernel: increase slab leak leads to DoS (CVE-2021-20265)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

kernel-rt: update to the latest RHEL7.9.z4 source tree (BZ#1917909)
Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Bugs fixed (https://bugzilla.redhat.com/):

1781821 - CVE-2019-19532 kernel: malicious USB devices can lead to multiple out-of-bounds write 1795624 - CVE-2020-7053 kernel: use-after-free in i915_ppgtt_close in drivers/gpu/drm/i915/i915_gem_gtt.c 1862849 - CVE-2020-14351 kernel: performance counters race condition use-after-free 1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c 1883988 - CVE-2020-25645 kernel: Geneve/IPsec traffic may be unencrypted between two Geneve endpoints 1888726 - CVE-2020-25656 kernel: use-after-free in read in vt_do_kdgkb_ioctl 1894579 - CVE-2020-25705 kernel: ICMP rate limiting can be used for DNS poisoning attack 1899804 - CVE-2020-28374 kernel: SCSI target (LIO) write to any block on ILO backstore 1906525 - CVE-2020-29661 kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free 1908827 - CVE-2021-20265 kernel: increase slab leak leads to DoS 1919893 - CVE-2020-0427 kernel: out-of-bounds reads in pinctrl subsystem.

Package List:

Red Hat Enterprise Linux for Real Time for NFV (v. 7):

Source: kernel-rt-3.10.0-1160.21.1.rt56.1158.el7.src.rpm

noarch: kernel-rt-doc-3.10.0-1160.21.1.rt56.1158.el7.noarch.rpm

x86_64: kernel-rt-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-kvm-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm

Red Hat Enterprise Linux for Real Time (v. 7):

Source: kernel-rt-3.10.0-1160.21.1.rt56.1158.el7.src.rpm

noarch: kernel-rt-doc-3.10.0-1160.21.1.rt56.1158.el7.noarch.rpm

These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/

References:

https://access.redhat.com/security/cve/CVE-2019-19532 https://access.redhat.com/security/cve/CVE-2020-0427 https://access.redhat.com/security/cve/CVE-2020-7053 https://access.redhat.com/security/cve/CVE-2020-14351 https://access.redhat.com/security/cve/CVE-2020-25211 https://access.redhat.com/security/cve/CVE-2020-25645 https://access.redhat.com/security/cve/CVE-2020-25656 https://access.redhat.com/security/cve/CVE-2020-25705 https://access.redhat.com/security/cve/CVE-2020-28374 https://access.redhat.com/security/cve/CVE-2020-29661 https://access.redhat.com/security/cve/CVE-2021-20265 https://access.redhat.com/security/updates/classification/#important

Contact:

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/

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-- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce .

This advisory contains the following OpenShift Virtualization 2.6.0 images:

RHEL-8-CNV-2.6 =============kubevirt-cpu-node-labeller-container-v2.6.0-5 kubevirt-cpu-model-nfd-plugin-container-v2.6.0-5 node-maintenance-operator-container-v2.6.0-13 kubevirt-vmware-container-v2.6.0-5 virtio-win-container-v2.6.0-5 kubevirt-kvm-info-nfd-plugin-container-v2.6.0-5 bridge-marker-container-v2.6.0-9 kubevirt-template-validator-container-v2.6.0-9 kubevirt-v2v-conversion-container-v2.6.0-6 kubemacpool-container-v2.6.0-13 kubevirt-ssp-operator-container-v2.6.0-40 hyperconverged-cluster-webhook-container-v2.6.0-73 hyperconverged-cluster-operator-container-v2.6.0-73 ovs-cni-plugin-container-v2.6.0-10 cnv-containernetworking-plugins-container-v2.6.0-10 ovs-cni-marker-container-v2.6.0-10 cluster-network-addons-operator-container-v2.6.0-16 hostpath-provisioner-container-v2.6.0-11 hostpath-provisioner-operator-container-v2.6.0-14 vm-import-virtv2v-container-v2.6.0-21 kubernetes-nmstate-handler-container-v2.6.0-19 vm-import-controller-container-v2.6.0-21 vm-import-operator-container-v2.6.0-21 virt-api-container-v2.6.0-111 virt-controller-container-v2.6.0-111 virt-handler-container-v2.6.0-111 virt-operator-container-v2.6.0-111 virt-launcher-container-v2.6.0-111 cnv-must-gather-container-v2.6.0-54 virt-cdi-importer-container-v2.6.0-24 virt-cdi-cloner-container-v2.6.0-24 virt-cdi-controller-container-v2.6.0-24 virt-cdi-uploadserver-container-v2.6.0-24 virt-cdi-apiserver-container-v2.6.0-24 virt-cdi-uploadproxy-container-v2.6.0-24 virt-cdi-operator-container-v2.6.0-24 hco-bundle-registry-container-v2.6.0-582

Security Fix(es):

golang.org/x/crypto: Processing of crafted ssh-ed25519 public keys allows for panic (CVE-2020-9283)
golang: crypto/ssh: crafted authentication request can lead to nil pointer dereference (CVE-2020-29652)
gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation (CVE-2021-3121)
golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash (CVE-2020-14040)
golang: data race in certain net/http servers including ReverseProxy can lead to DoS (CVE-2020-15586)
golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs (CVE-2020-16845)
jwt-go: access restriction bypass vulnerability (CVE-2020-26160)
golang-github-gorilla-websocket: integer overflow leads to denial of service (CVE-2020-27813)
golang: math/big: panic during recursive division of very large numbers (CVE-2020-28362)
containernetworking-cni: Arbitrary path injection via type field in CNI configuration (CVE-2021-20206)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bugs fixed (https://bugzilla.redhat.com/):

1732329 - Virtual Machine is missing documentation of its properties in yaml editor 1783192 - Guest kernel panic when start RHEL6.10 guest with q35 machine type and virtio disk in cnv 1791753 - [RFE] [SSP] Template validator should check validations in template's parent template 1804533 - CVE-2020-9283 golang.org/x/crypto: Processing of crafted ssh-ed25519 public keys allows for panic 1848954 - KMP missing CA extensions in cabundle of mutatingwebhookconfiguration 1848956 - KMP requires downtime for CA stabilization during certificate rotation 1853652 - CVE-2020-14040 golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash 1853911 - VM with dot in network name fails to start with unclear message 1854098 - NodeNetworkState on workers doesn't have "status" key due to nmstate-handler pod failure to run "nmstatectl show" 1856347 - SR-IOV : Missing network name for sriov during vm setup 1856953 - CVE-2020-15586 golang: data race in certain net/http servers including ReverseProxy can lead to DoS 1859235 - Common Templates - after upgrade there are 2 common templates per each os-workload-flavor combination 1860714 - No API information from oc explain 1860992 - CNV upgrade - users are not removed from privileged SecurityContextConstraints 1864577 - [v2v][RHV to CNV non migratable source VM fails to import to Ceph-rbd / File system due to overhead required for Filesystem 1866593 - CDI is not handling vm disk clone 1867099 - CVE-2020-16845 golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs 1868817 - Container-native Virtualization 2.6.0 Images 1873771 - Improve the VMCreationFailed error message caused by VM low memory 1874812 - SR-IOV: Guest Agent expose link-local ipv6 address for sometime and then remove it 1878499 - DV import doesn't recover from scratch space PVC deletion 1879108 - Inconsistent naming of "oc virt" command in help text 1881874 - openshift-cnv namespace is getting stuck if the user tries to delete it while CNV is running 1883232 - Webscale: kubevirt/CNV datavolume importer pod inability to disable sidecar injection if namespace has sidecar injection enabled but VM Template does NOT 1883371 - CVE-2020-26160 jwt-go: access restriction bypass vulnerability 1885153 - [v2v][RHV to CNv VM import] Wrong Network mapping do not show a relevant error message 1885418 - [openshift-cnv] issues with memory overhead calculation when limits are used 1887398 - [openshift-cnv][CNV] nodes need to exist and be labeled first, before the NodeNetworkConfigurationPolicy is applied 1889295 - [v2v][VMware to CNV VM import API] diskMappings: volumeMode Block is not passed on to PVC request. 1891285 - Common templates and kubevirt-config cm - update machine-type 1891440 - [v2v][VMware to CNV VM import API]Source VM with no network interface fail with unclear error 1892227 - [SSP] cluster scoped resources are not being reconciled 1893278 - openshift-virtualization-os-images namespace not seen by user 1893646 - [HCO] Pod placement configuration - dry run is not performed for all the configuration stanza 1894428 - Message for VMI not migratable is not clear enough 1894824 - [v2v][VM import] Pick the smallest template for the imported VM, and not always Medium 1894897 - [v2v][VMIO] VMimport CR is not reported as failed when target VM is deleted during the import 1895414 - Virt-operator is accepting updates to the placement of its workload components even with running VMs 1897635 - CVE-2020-28362 golang: math/big: panic during recursive division of very large numbers 1898072 - Add Fedora33 to Fedora common templates 1898840 - [v2v] VM import VMWare to CNV Import 63 chars vm name should not fail 1899558 - CNV 2.6 - nmstate fails to set state 1901480 - VM disk io can't worked if namespace have label kubemacpool 1902046 - Not possible to edit CDIConfig (through CDI CR / CDIConfig) 1902111 - CVE-2020-27813 golang-github-gorilla-websocket: integer overflow leads to denial of service 1903014 - hco-webhook pod in CreateContainerError 1903585 - [v2v] Windows 2012 VM imported from RHV goes into Windows repair mode 1904797 - [VMIO][vmware] A migrated RHEL/Windows VM starts in emergency mode/safe mode when target storage is NFS and target namespace is NOT "default" 1906199 - [CNV-2.5] CNV Tries to Install on Windows Workers 1907151 - kubevirt version is not reported correctly via virtctl 1907352 - VM/VMI link changes to kubevirt.io~v1~VirtualMachineInstance on CNV 2.6 1907691 - [CNV] Configuring NodeNetworkConfigurationPolicy caused "Internal error occurred" for creating datavolume 1907988 - VM loses dynamic IP address of its default interface after migration 1908363 - Applying NodeNetworkConfigurationPolicy for different NIC than default disables br-ex bridge and nodes lose connectivity 1908421 - [v2v] [VM import RHV to CNV] Windows imported VM boot failed: INACCESSIBLE BOOT DEVICE error 1908883 - CVE-2020-29652 golang: crypto/ssh: crafted authentication request can lead to nil pointer dereference 1909458 - [V2V][VMware to CNV VM import via api using VMIO] VM import to Ceph RBD/BLOCK fails on "qemu-img: /data/disk.img" error 1910857 - Provide a mechanism to enable the HotplugVolumes feature gate via HCO 1911118 - Windows VMI LiveMigration / shutdown fails on 'XML error: non unique alias detected: ua-') 1911396 - Set networkInterfaceMultiqueue false in rhel 6 template for e1000e interface 1911662 - el6 guests don't work properly if virtio bus is specified on various devices 1912908 - Allow using "scsi" bus for disks in template validation 1913248 - Creating vlan interface on top of a bond device via NodeNetworkConfigurationPolicy fails 1913320 - Informative message needed with virtctl image-upload, that additional step is needed from the user 1913717 - Users should have read permitions for golden images data volumes 1913756 - Migrating to Ceph-RBD + Block fails when skipping zeroes 1914177 - CNV does not preallocate blank file data volumes 1914608 - Obsolete CPU models (kubevirt-cpu-plugin-configmap) are set on worker nodes 1914947 - HPP golden images - DV shoudld not be created with WaitForFirstConsumer 1917908 - [VMIO] vmimport pod fail to create when using ceph-rbd/block 1917963 - [CNV 2.6] Unable to install CNV disconnected - requires kvm-info-nfd-plugin which is not mirrored 1919391 - CVE-2021-20206 containernetworking-cni: Arbitrary path injection via type field in CNI configuration 1920576 - HCO can report ready=true when it failed to create a CR for a component operator 1920610 - e2e-aws-4.7-cnv consistently failing on Hyperconverged Cluster Operator 1921650 - CVE-2021-3121 gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation 1923979 - kubernetes-nmstate: nmstate-handler pod crashes when configuring bridge device using ip tool 1927373 - NoExecute taint violates pdb; VMIs are not live migrated 1931376 - VMs disconnected from nmstate-defined bridge after CNV-2.5.4->CNV-2.6.0 upgrade

========================================================================= Ubuntu Security Notice USN-5130-1 November 09, 2021

linux vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in the Linux kernel. (CVE-2020-29660)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04 ESM: linux-image-3.13.0-188-generic 3.13.0-188.239 linux-image-3.13.0-188-lowlatency 3.13.0-188.239 linux-image-generic 3.13.0.188.197 linux-image-lowlatency 3.13.0.188.197 linux-image-server 3.13.0.188.197 linux-image-virtual 3.13.0.188.197

After a standard system update you need to reboot your computer to make all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

CVE-2020-27815

A flaw was reported in the JFS filesystem code allowing a local
attacker with the ability to set extended attributes to cause a
denial of service.

CVE-2020-27825

Adam 'pi3' Zabrocki reported a use-after-free flaw in the ftrace
ring buffer resizing logic due to a race condition, which could
result in denial of service or information leak.

CVE-2020-27830

Shisong Qin reported a NULL pointer dereference flaw in the Speakup
screen reader core driver.

CVE-2020-28374

David Disseldorp discovered that the LIO SCSI target implementation
performed insufficient checking in certain XCOPY requests. An
attacker with access to a LUN and knowledge of Unit Serial Number
assignments can take advantage of this flaw to read and write to any
LIO backstore, regardless of the SCSI transport settings.

CVE-2020-29568 (XSA-349)

Michael Kurth and Pawel Wieczorkiewicz reported that frontends can
trigger OOM in backends by updating a watched path.

CVE-2020-29569 (XSA-350)

Olivier Benjamin and Pawel Wieczorkiewicz reported a use-after-free
flaw which can be triggered by a block frontend in Linux blkback. A
misbehaving guest can trigger a dom0 crash by continuously
connecting / disconnecting a block frontend. A local attacker can take advantage of
this flaw for memory corruption or privilege escalation.

CVE-2020-36158

A buffer overflow flaw was discovered in the mwifiex WiFi driver
which could result in denial of service or the execution of
arbitrary code via a long SSID value.

CVE-2021-3347

It was discovered that PI futexes have a kernel stack use-after-free
during fault handling. An unprivileged user could use this flaw to
crash the kernel (resulting in denial of service) or for privilege
escalation.

CVE-2021-20177

A flaw was discovered in the Linux implementation of string matching
within a packet. A privileged user (with root or CAP_NET_ADMIN) can
take advantage of this flaw to cause a kernel panic when inserting
iptables rules.

For the stable distribution (buster), these problems have been fixed in version 4.19.171-2.

We recommend that you upgrade your linux packages.

For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----

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    "data": "A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b. Linux Kernel contains a resource locking vulnerability and a freed memory usage vulnerability. Vendors must CID-54ffccbf053b It is published as.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. \n\nRed Hat Advanced Cluster Management for Kubernetes provides the\ncapabilities to address common challenges that administrators and site\nreliability engineers face as they work across a range of public and\nprivate cloud environments. Clusters and applications are all visible and\nmanaged from a single console\u2014with security policy built in. \n\nBug fix:\n\n* RHACM 2.0.8 images (BZ #1915461)\n\n3. Solution:\n\nBefore applying this update, make sure all previously released errata\nrelevant to your system have been applied. Bugs fixed (https://bugzilla.redhat.com/):\n\n1915461 - RHACM 2.0.8 images\n1921650 - CVE-2021-3121 gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation\n\n5. 8.1) - ppc64le, x86_64\n\n3. Description:\n\nThis is a kernel live patch module which is automatically loaded by the RPM\npost-install script to modify the code of a running kernel. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n=====================================================================\n                   Red Hat Security Advisory\n\nSynopsis:          Important: kernel-rt security and bug fix update\nAdvisory ID:       RHSA-2021:0857-01\nProduct:           Red Hat Enterprise Linux\nAdvisory URL:      https://access.redhat.com/errata/RHSA-2021:0857\nIssue date:        2021-03-16\nCVE Names:         CVE-2019-19532 CVE-2020-0427 CVE-2020-7053 \n                   CVE-2020-14351 CVE-2020-25211 CVE-2020-25645 \n                   CVE-2020-25656 CVE-2020-25705 CVE-2020-28374 \n                   CVE-2020-29661 CVE-2021-20265 \n=====================================================================\n\n1. Summary:\n\nAn update for kernel-rt is now available for Red Hat Enterprise Linux 7. \n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux for Real Time (v. 7) - noarch, x86_64\nRed Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64\n\n3. Description:\n\nThe kernel-rt packages provide the Real Time Linux Kernel, which enables\nfine-tuning for systems with extremely high determinism requirements. \n\nSecurity Fix(es):\n\n* kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in\nnet/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)\n\n* kernel: SCSI target (LIO) write to any block on ILO backstore\n(CVE-2020-28374)\n\n* kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an\nuse-after-free (CVE-2020-29661)\n\n* kernel: malicious USB devices can lead to multiple out-of-bounds write\n(CVE-2019-19532)\n\n* kernel: out-of-bounds reads in pinctrl subsystem. (CVE-2020-0427)\n\n* kernel: use-after-free in i915_ppgtt_close in\ndrivers/gpu/drm/i915/i915_gem_gtt.c (CVE-2020-7053)\n\n* kernel: performance counters race condition use-after-free\n(CVE-2020-14351)\n\n* kernel: Geneve/IPsec traffic may be unencrypted between two Geneve\nendpoints (CVE-2020-25645)\n\n* kernel: use-after-free in read in vt_do_kdgkb_ioctl (CVE-2020-25656)\n\n* kernel: ICMP rate limiting can be used for DNS poisoning attack\n(CVE-2020-25705)\n\n* kernel: increase slab leak leads to DoS (CVE-2021-20265)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\nBug Fix(es):\n\n* kernel-rt: update to the latest RHEL7.9.z4 source tree (BZ#1917909)\n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect. \n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1781821 - CVE-2019-19532 kernel: malicious USB devices can lead to multiple out-of-bounds write\n1795624 - CVE-2020-7053 kernel: use-after-free in i915_ppgtt_close in drivers/gpu/drm/i915/i915_gem_gtt.c\n1862849 - CVE-2020-14351 kernel: performance counters race condition use-after-free\n1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c\n1883988 - CVE-2020-25645 kernel: Geneve/IPsec traffic may be unencrypted between two Geneve endpoints\n1888726 - CVE-2020-25656 kernel: use-after-free in read in vt_do_kdgkb_ioctl\n1894579 - CVE-2020-25705 kernel: ICMP rate limiting can be used for DNS poisoning attack\n1899804 - CVE-2020-28374 kernel: SCSI target (LIO) write to any block on ILO backstore\n1906525 - CVE-2020-29661 kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free\n1908827 - CVE-2021-20265 kernel: increase slab leak leads to DoS\n1919893 - CVE-2020-0427 kernel: out-of-bounds reads in pinctrl subsystem. \n\n6. Package List:\n\nRed Hat Enterprise Linux for Real Time for NFV (v. 7):\n\nSource:\nkernel-rt-3.10.0-1160.21.1.rt56.1158.el7.src.rpm\n\nnoarch:\nkernel-rt-doc-3.10.0-1160.21.1.rt56.1158.el7.noarch.rpm\n\nx86_64:\nkernel-rt-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debug-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debug-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debug-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debug-kvm-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debug-kvm-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debuginfo-common-x86_64-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-kvm-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-kvm-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-trace-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-trace-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-trace-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-trace-kvm-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-trace-kvm-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\n\nRed Hat Enterprise Linux for Real Time (v. 7):\n\nSource:\nkernel-rt-3.10.0-1160.21.1.rt56.1158.el7.src.rpm\n\nnoarch:\nkernel-rt-doc-3.10.0-1160.21.1.rt56.1158.el7.noarch.rpm\n\nx86_64:\nkernel-rt-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debug-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debug-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debug-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-debuginfo-common-x86_64-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-trace-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-trace-debuginfo-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\nkernel-rt-trace-devel-3.10.0-1160.21.1.rt56.1158.el7.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security.  Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2019-19532\nhttps://access.redhat.com/security/cve/CVE-2020-0427\nhttps://access.redhat.com/security/cve/CVE-2020-7053\nhttps://access.redhat.com/security/cve/CVE-2020-14351\nhttps://access.redhat.com/security/cve/CVE-2020-25211\nhttps://access.redhat.com/security/cve/CVE-2020-25645\nhttps://access.redhat.com/security/cve/CVE-2020-25656\nhttps://access.redhat.com/security/cve/CVE-2020-25705\nhttps://access.redhat.com/security/cve/CVE-2020-28374\nhttps://access.redhat.com/security/cve/CVE-2020-29661\nhttps://access.redhat.com/security/cve/CVE-2021-20265\nhttps://access.redhat.com/security/updates/classification/#important\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2021 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n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\nZtp7AlQNK9g=\n=j5Z8\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://listman.redhat.com/mailman/listinfo/rhsa-announce\n. \n\nThis advisory contains the following OpenShift Virtualization 2.6.0 images:\n\nRHEL-8-CNV-2.6\n=============kubevirt-cpu-node-labeller-container-v2.6.0-5\nkubevirt-cpu-model-nfd-plugin-container-v2.6.0-5\nnode-maintenance-operator-container-v2.6.0-13\nkubevirt-vmware-container-v2.6.0-5\nvirtio-win-container-v2.6.0-5\nkubevirt-kvm-info-nfd-plugin-container-v2.6.0-5\nbridge-marker-container-v2.6.0-9\nkubevirt-template-validator-container-v2.6.0-9\nkubevirt-v2v-conversion-container-v2.6.0-6\nkubemacpool-container-v2.6.0-13\nkubevirt-ssp-operator-container-v2.6.0-40\nhyperconverged-cluster-webhook-container-v2.6.0-73\nhyperconverged-cluster-operator-container-v2.6.0-73\novs-cni-plugin-container-v2.6.0-10\ncnv-containernetworking-plugins-container-v2.6.0-10\novs-cni-marker-container-v2.6.0-10\ncluster-network-addons-operator-container-v2.6.0-16\nhostpath-provisioner-container-v2.6.0-11\nhostpath-provisioner-operator-container-v2.6.0-14\nvm-import-virtv2v-container-v2.6.0-21\nkubernetes-nmstate-handler-container-v2.6.0-19\nvm-import-controller-container-v2.6.0-21\nvm-import-operator-container-v2.6.0-21\nvirt-api-container-v2.6.0-111\nvirt-controller-container-v2.6.0-111\nvirt-handler-container-v2.6.0-111\nvirt-operator-container-v2.6.0-111\nvirt-launcher-container-v2.6.0-111\ncnv-must-gather-container-v2.6.0-54\nvirt-cdi-importer-container-v2.6.0-24\nvirt-cdi-cloner-container-v2.6.0-24\nvirt-cdi-controller-container-v2.6.0-24\nvirt-cdi-uploadserver-container-v2.6.0-24\nvirt-cdi-apiserver-container-v2.6.0-24\nvirt-cdi-uploadproxy-container-v2.6.0-24\nvirt-cdi-operator-container-v2.6.0-24\nhco-bundle-registry-container-v2.6.0-582\n\nSecurity Fix(es):\n\n* golang.org/x/crypto: Processing of crafted ssh-ed25519 public keys allows\nfor panic (CVE-2020-9283)\n\n* golang: crypto/ssh: crafted authentication request can lead to nil\npointer dereference (CVE-2020-29652)\n\n* gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index\nvalidation (CVE-2021-3121)\n\n* golang.org/x/text: possibility to trigger an infinite loop in\nencoding/unicode could lead to crash (CVE-2020-14040)\n\n* golang: data race in certain net/http servers including ReverseProxy can\nlead to DoS (CVE-2020-15586)\n\n* golang: ReadUvarint and ReadVarint can read an unlimited number of bytes\nfrom invalid inputs (CVE-2020-16845)\n\n* jwt-go: access restriction bypass vulnerability (CVE-2020-26160)\n\n* golang-github-gorilla-websocket: integer overflow leads to denial of\nservice (CVE-2020-27813)\n\n* golang: math/big: panic during recursive division of very large numbers\n(CVE-2020-28362)\n\n* containernetworking-cni: Arbitrary path injection via type field in CNI\nconfiguration (CVE-2021-20206)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. Bugs fixed (https://bugzilla.redhat.com/):\n\n1732329 - Virtual Machine is missing documentation of its properties in yaml editor\n1783192 - Guest kernel panic when start RHEL6.10 guest with q35 machine type and virtio disk in cnv\n1791753 - [RFE] [SSP] Template validator should check validations in template\u0027s parent template\n1804533 - CVE-2020-9283 golang.org/x/crypto: Processing of crafted ssh-ed25519 public keys allows for panic\n1848954 - KMP missing CA extensions  in cabundle of mutatingwebhookconfiguration\n1848956 - KMP  requires downtime for CA stabilization during certificate rotation\n1853652 - CVE-2020-14040 golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash\n1853911 - VM with dot in network name fails to start with unclear message\n1854098 - NodeNetworkState on workers doesn\u0027t have \"status\" key due to nmstate-handler pod failure to run \"nmstatectl show\"\n1856347 - SR-IOV : Missing network name for sriov during vm setup\n1856953 - CVE-2020-15586 golang: data race in certain net/http servers including ReverseProxy can lead to DoS\n1859235 - Common Templates - after upgrade there are 2  common templates per each os-workload-flavor combination\n1860714 - No API information from `oc explain`\n1860992 - CNV upgrade - users are not removed from privileged  SecurityContextConstraints\n1864577 - [v2v][RHV to CNV non migratable source VM fails to import to Ceph-rbd / File system due to overhead required for Filesystem\n1866593 - CDI is not handling vm disk clone\n1867099 - CVE-2020-16845 golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs\n1868817 - Container-native Virtualization 2.6.0 Images\n1873771 - Improve the VMCreationFailed error message caused by VM low memory\n1874812 - SR-IOV: Guest Agent  expose link-local ipv6 address  for sometime and then remove it\n1878499 - DV import doesn\u0027t recover from scratch space PVC deletion\n1879108 - Inconsistent naming of \"oc virt\" command in help text\n1881874 - openshift-cnv namespace is getting stuck if the user tries to delete it while CNV is running\n1883232 - Webscale: kubevirt/CNV datavolume importer pod inability to disable sidecar injection if namespace has sidecar injection enabled but VM Template does NOT\n1883371 - CVE-2020-26160 jwt-go: access restriction bypass vulnerability\n1885153 - [v2v][RHV to CNv VM import] Wrong Network mapping do not show a relevant error message\n1885418 - [openshift-cnv] issues with memory overhead calculation when limits are used\n1887398 - [openshift-cnv][CNV] nodes need to exist and be labeled first, *before* the NodeNetworkConfigurationPolicy is applied\n1889295 - [v2v][VMware to CNV VM import API] diskMappings: volumeMode Block is not passed on to PVC request. \n1891285 - Common templates and kubevirt-config cm - update machine-type\n1891440 - [v2v][VMware to CNV VM import API]Source VM with no network interface fail with unclear error\n1892227 - [SSP] cluster scoped resources are not being reconciled\n1893278 - openshift-virtualization-os-images namespace not seen by user\n1893646 - [HCO] Pod placement configuration - dry run is not performed for all the configuration stanza\n1894428 - Message for VMI not migratable is not clear enough\n1894824 - [v2v][VM import] Pick the smallest template for the imported VM, and not always Medium\n1894897 - [v2v][VMIO] VMimport CR is not reported as failed when target VM is deleted during the import\n1895414 - Virt-operator is accepting updates to the placement of its workload components even with running VMs\n1897635 - CVE-2020-28362 golang: math/big: panic during recursive division of very large numbers\n1898072 - Add Fedora33 to Fedora common templates\n1898840 - [v2v] VM import VMWare to CNV Import 63 chars vm name should not fail\n1899558 - CNV 2.6 - nmstate fails to set state\n1901480 - VM disk io can\u0027t worked if namespace have label kubemacpool\n1902046 - Not possible to edit CDIConfig (through CDI CR / CDIConfig)\n1902111 - CVE-2020-27813 golang-github-gorilla-websocket: integer overflow leads to denial of service\n1903014 - hco-webhook pod in CreateContainerError\n1903585 - [v2v] Windows 2012 VM imported from RHV goes into Windows repair mode\n1904797 - [VMIO][vmware] A migrated RHEL/Windows VM starts in emergency mode/safe mode when target storage is NFS and target namespace is NOT \"default\"\n1906199 - [CNV-2.5] CNV Tries to Install on Windows Workers\n1907151 - kubevirt version is not reported correctly via virtctl\n1907352 - VM/VMI link changes to `kubevirt.io~v1~VirtualMachineInstance` on CNV 2.6\n1907691 - [CNV] Configuring NodeNetworkConfigurationPolicy caused \"Internal error occurred\" for creating datavolume\n1907988 - VM loses dynamic IP address of its default interface after migration\n1908363 - Applying NodeNetworkConfigurationPolicy for different NIC than default disables br-ex bridge and nodes lose connectivity\n1908421 - [v2v] [VM import RHV to CNV] Windows imported VM boot failed: INACCESSIBLE BOOT DEVICE error\n1908883 - CVE-2020-29652 golang: crypto/ssh: crafted authentication request can lead to nil pointer dereference\n1909458 - [V2V][VMware to CNV VM import via api using VMIO] VM import  to Ceph RBD/BLOCK fails on \"qemu-img: /data/disk.img\" error\n1910857 - Provide a mechanism to enable the HotplugVolumes feature gate via HCO\n1911118 - Windows VMI LiveMigration / shutdown fails on \u0027XML error: non unique alias detected: ua-\u0027)\n1911396 - Set networkInterfaceMultiqueue false in rhel 6 template for e1000e interface\n1911662 - el6 guests don\u0027t work properly if virtio bus is specified on various devices\n1912908 - Allow using \"scsi\" bus for disks in template validation\n1913248 - Creating vlan interface on top of a bond device via NodeNetworkConfigurationPolicy fails\n1913320 - Informative message needed with virtctl image-upload, that additional step is needed from the user\n1913717 - Users should have read permitions for golden images data volumes\n1913756 - Migrating to Ceph-RBD + Block fails when skipping zeroes\n1914177 - CNV does not preallocate blank file data volumes\n1914608 - Obsolete CPU models (kubevirt-cpu-plugin-configmap) are set on worker nodes\n1914947 - HPP golden images - DV shoudld not be created with WaitForFirstConsumer\n1917908 - [VMIO] vmimport pod fail to create when using ceph-rbd/block\n1917963 - [CNV 2.6] Unable to install CNV disconnected - requires kvm-info-nfd-plugin which is not mirrored\n1919391 - CVE-2021-20206 containernetworking-cni: Arbitrary path injection via type field in CNI configuration\n1920576 - HCO can report ready=true when it failed to create a CR for a component operator\n1920610 - e2e-aws-4.7-cnv consistently failing on Hyperconverged Cluster Operator\n1921650 - CVE-2021-3121 gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation\n1923979 - kubernetes-nmstate: nmstate-handler pod crashes when configuring bridge device using ip tool\n1927373 - NoExecute taint violates pdb; VMIs are not live migrated\n1931376 - VMs disconnected from nmstate-defined bridge after CNV-2.5.4-\u003eCNV-2.6.0 upgrade\n\n5. =========================================================================\nUbuntu Security Notice USN-5130-1\nNovember 09, 2021\n\nlinux vulnerabilities\n=========================================================================\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 14.04 ESM\n\nSummary:\n\nSeveral security issues were fixed in the Linux kernel. \n(CVE-2020-29660)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 14.04 ESM:\n  linux-image-3.13.0-188-generic  3.13.0-188.239\n  linux-image-3.13.0-188-lowlatency  3.13.0-188.239\n  linux-image-generic             3.13.0.188.197\n  linux-image-lowlatency          3.13.0.188.197\n  linux-image-server              3.13.0.188.197\n  linux-image-virtual             3.13.0.188.197\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nATTENTION: Due to an unavoidable ABI change the kernel updates have\nbeen given a new version number, which requires you to recompile and\nreinstall all third party kernel modules you might have installed. \nUnless you manually uninstalled the standard kernel metapackages\n(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,\nlinux-powerpc), a standard system upgrade will automatically perform\nthis as well. \n\nCVE-2020-27815\n\n    A flaw was reported in the JFS filesystem code allowing a local\n    attacker with the ability to set extended attributes to cause a\n    denial of service. \n\nCVE-2020-27825\n\n    Adam \u0027pi3\u0027 Zabrocki reported a use-after-free flaw in the ftrace\n    ring buffer resizing logic due to a race condition, which could\n    result in denial of service or information leak. \n\nCVE-2020-27830\n\n    Shisong Qin reported a NULL pointer dereference flaw in the Speakup\n    screen reader core driver. \n\nCVE-2020-28374\n\n    David Disseldorp discovered that the LIO SCSI target implementation\n    performed insufficient checking in certain XCOPY requests. An\n    attacker with access to a LUN and knowledge of Unit Serial Number\n    assignments can take advantage of this flaw to read and write to any\n    LIO backstore, regardless of the SCSI transport settings. \n\nCVE-2020-29568 (XSA-349)\n\n    Michael Kurth and Pawel Wieczorkiewicz reported that frontends can\n    trigger OOM in backends by updating a watched path. \n\nCVE-2020-29569 (XSA-350)\n\n    Olivier Benjamin and Pawel Wieczorkiewicz reported a use-after-free\n    flaw which can be triggered by a block frontend in Linux blkback. A\n    misbehaving guest can trigger a dom0 crash by continuously\n    connecting / disconnecting a block frontend. A local attacker can take advantage of\n    this flaw for memory corruption or privilege escalation. \n\nCVE-2020-36158\n\n    A buffer overflow flaw was discovered in the mwifiex WiFi driver\n    which could result in denial of service or the execution of\n    arbitrary code via a long SSID value. \n\nCVE-2021-3347\n\n    It was discovered that PI futexes have a kernel stack use-after-free\n    during fault handling. An unprivileged user could use this flaw to\n    crash the kernel (resulting in denial of service) or for privilege\n    escalation. \n\nCVE-2021-20177\n\n    A flaw was discovered in the Linux implementation of string matching\n    within a packet. 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CVE-2020-29661 (GCVE-0-2020-29661)

Vulnerability from cvelistv5 – Published: 2020-12-09 16:57 – Updated: 2024-08-04 16:55

Summary

A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

11 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/12/10/1	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2021/dsa-4843	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC
http://packetstormsecurity.com/files/160681/Linux…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021012…	x_refsource_CONFIRM
http://packetstormsecurity.com/files/164950/Kerne…	x_refsource_MISC

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.