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52 vulnerabilities by Linux kernel
CVE-2024-2193 (GCVE-0-2024-2193)
Vulnerability from cvelistv5 – Published: 2024-03-15 18:03 – Updated: 2025-04-30 23:03
VLAI
Title
Speculative Race Condition impacts modern CPU architectures that support speculative execution, also known as GhostRace.
Summary
A Speculative Race Condition (SRC) vulnerability that impacts modern CPU architectures supporting speculative execution (related to Spectre V1) has been disclosed. An unauthenticated attacker can exploit this vulnerability to disclose arbitrary data from the CPU using race conditions to access the speculative executable code paths.
Severity
5.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
13 references
Impacted products
Credits
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CVE-2022-2785 (GCVE-0-2022-2785)
Vulnerability from cvelistv5 – Published: 2022-09-23 11:10 – Updated: 2025-04-21 13:49
VLAI
Title
Arbitrary Memory read in BPF Linux Kernel
Summary
There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily read memory from anywhere on the system. We recommend upgrading past commit 86f44fcec22c
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://git.kernel.org/bpf/bpf/c/86f44fcec22c | x_refsource_MISC |
| https://lore.kernel.org/bpf/20220816205517.682470… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Kernel |
Affected:
5.14 , < af2ac3e13e45
(custom)
Affected: 5.18 , < b1d18a7574d0 (custom) |
Date Public
2022-08-07 00:00
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CVE-2022-2503 (GCVE-0-2022-2503)
Vulnerability from cvelistv5 – Published: 2022-08-12 00:00 – Updated: 2025-04-21 13:50
VLAI
Title
Linux Kernel LoadPin bypass via dm-verity table reload
Summary
Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5
Severity
6.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-302 - Authentication Bypass by Assumed-Immutable Data
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
unspecified , < 4caae58406f8ceb741603eee460d79bacca9b1b5
(custom)
|
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CVE-2022-2327 (GCVE-0-2022-2327)
Vulnerability from cvelistv5 – Published: 2022-07-22 00:00 – Updated: 2025-04-21 13:51
VLAI
Title
Use-after-free in io_uring ad work_flags in Linux Kernel
Summary
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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CVE-2021-22600 (GCVE-0-2021-22600)
Vulnerability from cvelistv5 – Published: 2022-01-26 00:00 – Updated: 2025-10-21 23:15Title
Double Free in net/packet/af_packet.c leading to priviledge escalation
Summary
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Severity
6.6 (Medium)
SSVC
Exploitation: active
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-415 - Double Free
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-list |
| https://www.debian.org/security/2022/dsa-5096 | vendor-advisory |
| https://security.netapp.com/advisory/ntap-2023011… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Kernel |
Affected:
unspecified , < 5.4.168
(custom)
Affected: unspecified , < 5.10.88 (custom) Affected: unspecified , < 5.15.11 (custom) Affected: unspecified , < 5.16-rc6 (custom) |
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CVE-2021-22543 (GCVE-0-2021-22543)
Vulnerability from cvelistv5 – Published: 2021-05-26 10:30 – Updated: 2024-09-16 23:26
VLAI
Title
Improper memory handling in Linux KVM
Summary
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.
Severity
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/google/security-research/secur… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2021/06/26/1 | 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://security.netapp.com/advisory/ntap-2021070… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
add6a0cd1c5ba51b201e1361b05a5df817083618 , < f8be156be163a052a067306417cd0ff679068c97
(git)
|
Date Public
2021-05-17 14:00
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CVE-2021-23134 (GCVE-0-2021-23134)
Vulnerability from cvelistv5 – Published: 2021-05-12 22:45 – Updated: 2024-09-17 03:38
VLAI
Title
Linux kernel llcp_sock_bind/connect use-after-free
Summary
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/n… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| 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://security.netapp.com/advisory/ntap-2021062… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
unspecified , < 5.12.4
(custom)
|
Date Public
2021-05-11 00:00
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CVE-2021-23133 (GCVE-0-2021-23133)
Vulnerability from cvelistv5 – Published: 2021-04-22 18:00 – Updated: 2024-09-16 19:04
VLAI
Title
Linux Kernel sctp_destroy_sock race condition
Summary
A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket.
Severity
6.7 (Medium)
CWE
- CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| http://www.openwall.com/lists/oss-security/2021/05/10/1 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/05/10/2 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/05/10/4 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/05/10/3 | mailing-listx_refsource_MLIST |
| https://security.netapp.com/advisory/ntap-2021061… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
unspecified , < 5.12-rc8
(custom)
|
Date Public
2021-04-13 00:00
Credits
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CVE-2020-16120 (GCVE-0-2020-16120)
Vulnerability from cvelistv5 – Published: 2021-02-10 19:45 – Updated: 2024-09-16 18:49
VLAI
Title
Unprivileged overlay + shiftfs read access
Summary
Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a mountpoint controlled by the user, like a removable device. This was introduced in kernel version 4.19 by commit d1d04ef ("ovl: stack file ops"). This was fixed in kernel version 5.8 by commits 56230d9 ("ovl: verify permissions in ovl_path_open()"), 48bd024 ("ovl: switch to mounter creds in readdir") and 05acefb ("ovl: check permission to open real file"). Additionally, commits 130fdbc ("ovl: pass correct flags for opening real directory") and 292f902 ("ovl: call secutiry hook in ovl_real_ioctl()") in kernel 5.8 might also be desired or necessary. These additional commits introduced a regression in overlay mounts within user namespaces which prevented access to files with ownership outside of the user namespace. This regression was mitigated by subsequent commit b6650da ("ovl: do not fail because of O_NOATIMEi") in kernel 5.11.
Severity
5.1 (Medium)
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
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| URL | Tags |
|---|---|
| https://ubuntu.com/USN-4576-1 | vendor-advisoryx_refsource_UBUNTU |
| https://ubuntu.com/USN-4577-1 | vendor-advisoryx_refsource_UBUNTU |
| https://ubuntu.com/USN-4578-1 | vendor-advisoryx_refsource_UBUNTU |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_CONFIRM |
| https://launchpad.net/bugs/1894980 | vendor-advisoryx_refsource_UBUNTU |
| https://launchpad.net/bugs/1900141 | vendor-advisoryx_refsource_UBUNTU |
| https://git.kernel.org/linus/56230d956739b9cb1cbd… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/48bd024b8a40d73ad6b0… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/05acefb4872dae89e772… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/d1d04ef8572bc8c22265… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/b6650dab404c701d7fe0… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux kernel | Linux kernel |
Affected:
5.11-stable , < 5.11.0
(custom)
|
Date Public
2020-10-13 00:00
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CVE-2020-14386 (GCVE-0-2020-14386)
Vulnerability from cvelistv5 – Published: 2020-09-16 12:48 – Updated: 2024-08-04 12:46
VLAI
Summary
A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity.
Severity
6.7 (Medium)
Assigner
References
12 references
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|---|---|
| https://seclists.org/oss-sec/2020/q3/146 | x_refsource_MISC |
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| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://packetstormsecurity.com/files/159565/Kerne… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/09/17/2 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/09/17/4 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/09/21/1 | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
before 5.9-rc4
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CVE-2020-10781 (GCVE-0-2020-10781)
Vulnerability from cvelistv5 – Published: 2020-09-16 00:00 – Updated: 2024-08-04 11:14
VLAI
Summary
A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.
Severity
5.5 (Medium)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
before 5.8-rc6
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CVE-2020-10768 (GCVE-0-2020-10768)
Vulnerability from cvelistv5 – Published: 2020-09-15 23:13 – Updated: 2024-08-04 11:14
VLAI
Summary
A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.
Severity
5.5 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
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CVE-2020-10767 (GCVE-0-2020-10767)
Vulnerability from cvelistv5 – Published: 2020-09-15 22:14 – Updated: 2024-08-04 11:14
VLAI
Summary
A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.
Severity
5.5 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
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| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
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| Linux Kernel | kernel |
Affected:
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CVE-2020-10766 (GCVE-0-2020-10766)
Vulnerability from cvelistv5 – Published: 2020-09-15 22:10 – Updated: 2024-08-04 11:14
VLAI
Summary
A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.
Severity
5.5 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
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| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
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Affected:
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CVE-2020-14385 (GCVE-0-2020-14385)
Vulnerability from cvelistv5 – Published: 2020-09-15 21:14 – Updated: 2024-08-04 12:46
VLAI
Summary
A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability.
Severity
5.5 (Medium)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
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| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://usn.ubuntu.com/4576-1/ | vendor-advisoryx_refsource_UBUNTU |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
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CVE-2024-2193 (GCVE-0-2024-2193)
Vulnerability from nvd – Published: 2024-03-15 18:03 – Updated: 2025-04-30 23:03
VLAI
Title
Speculative Race Condition impacts modern CPU architectures that support speculative execution, also known as GhostRace.
Summary
A Speculative Race Condition (SRC) vulnerability that impacts modern CPU architectures supporting speculative execution (related to Spectre V1) has been disclosed. An unauthenticated attacker can exploit this vulnerability to disclose arbitrary data from the CPU using race conditions to access the speculative executable code paths.
Severity
5.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
13 references
Impacted products
Credits
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CVE-2022-2785 (GCVE-0-2022-2785)
Vulnerability from nvd – Published: 2022-09-23 11:10 – Updated: 2025-04-21 13:49
VLAI
Title
Arbitrary Memory read in BPF Linux Kernel
Summary
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Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://git.kernel.org/bpf/bpf/c/86f44fcec22c | x_refsource_MISC |
| https://lore.kernel.org/bpf/20220816205517.682470… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Kernel |
Affected:
5.14 , < af2ac3e13e45
(custom)
Affected: 5.18 , < b1d18a7574d0 (custom) |
Date Public
2022-08-07 00:00
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CVE-2022-2503 (GCVE-0-2022-2503)
Vulnerability from nvd – Published: 2022-08-12 00:00 – Updated: 2025-04-21 13:50
VLAI
Title
Linux Kernel LoadPin bypass via dm-verity table reload
Summary
Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5
Severity
6.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-302 - Authentication Bypass by Assumed-Immutable Data
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
unspecified , < 4caae58406f8ceb741603eee460d79bacca9b1b5
(custom)
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CVE-2022-2327 (GCVE-0-2022-2327)
Vulnerability from nvd – Published: 2022-07-22 00:00 – Updated: 2025-04-21 13:51
VLAI
Title
Use-after-free in io_uring ad work_flags in Linux Kernel
Summary
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
unspecified , < df3f3bb5059d20ef094d6b2f0256c4bf4127a859
(custom)
|
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CVE-2021-22600 (GCVE-0-2021-22600)
Vulnerability from nvd – Published: 2022-01-26 00:00 – Updated: 2025-10-21 23:15Title
Double Free in net/packet/af_packet.c leading to priviledge escalation
Summary
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Severity
6.6 (Medium)
SSVC
Exploitation: active
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-415 - Double Free
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-list |
| https://www.debian.org/security/2022/dsa-5096 | vendor-advisory |
| https://security.netapp.com/advisory/ntap-2023011… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Kernel |
Affected:
unspecified , < 5.4.168
(custom)
Affected: unspecified , < 5.10.88 (custom) Affected: unspecified , < 5.15.11 (custom) Affected: unspecified , < 5.16-rc6 (custom) |
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CVE-2021-22543 (GCVE-0-2021-22543)
Vulnerability from nvd – Published: 2021-05-26 10:30 – Updated: 2024-09-16 23:26
VLAI
Title
Improper memory handling in Linux KVM
Summary
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.
Severity
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/google/security-research/secur… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2021/06/26/1 | 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://security.netapp.com/advisory/ntap-2021070… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
add6a0cd1c5ba51b201e1361b05a5df817083618 , < f8be156be163a052a067306417cd0ff679068c97
(git)
|
Date Public
2021-05-17 14:00
Credits
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CVE-2021-23134 (GCVE-0-2021-23134)
Vulnerability from nvd – Published: 2021-05-12 22:45 – Updated: 2024-09-17 03:38
VLAI
Title
Linux kernel llcp_sock_bind/connect use-after-free
Summary
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/n… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
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| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
unspecified , < 5.12.4
(custom)
|
Date Public
2021-05-11 00:00
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CVE-2021-23133 (GCVE-0-2021-23133)
Vulnerability from nvd – Published: 2021-04-22 18:00 – Updated: 2024-09-16 19:04
VLAI
Title
Linux Kernel sctp_destroy_sock race condition
Summary
A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket.
Severity
6.7 (Medium)
CWE
- CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| http://www.openwall.com/lists/oss-security/2021/05/10/1 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/05/10/2 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/05/10/4 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/05/10/3 | mailing-listx_refsource_MLIST |
| https://security.netapp.com/advisory/ntap-2021061… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
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(custom)
|
Date Public
2021-04-13 00:00
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CVE-2020-16120 (GCVE-0-2020-16120)
Vulnerability from nvd – Published: 2021-02-10 19:45 – Updated: 2024-09-16 18:49
VLAI
Title
Unprivileged overlay + shiftfs read access
Summary
Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a mountpoint controlled by the user, like a removable device. This was introduced in kernel version 4.19 by commit d1d04ef ("ovl: stack file ops"). This was fixed in kernel version 5.8 by commits 56230d9 ("ovl: verify permissions in ovl_path_open()"), 48bd024 ("ovl: switch to mounter creds in readdir") and 05acefb ("ovl: check permission to open real file"). Additionally, commits 130fdbc ("ovl: pass correct flags for opening real directory") and 292f902 ("ovl: call secutiry hook in ovl_real_ioctl()") in kernel 5.8 might also be desired or necessary. These additional commits introduced a regression in overlay mounts within user namespaces which prevented access to files with ownership outside of the user namespace. This regression was mitigated by subsequent commit b6650da ("ovl: do not fail because of O_NOATIMEi") in kernel 5.11.
Severity
5.1 (Medium)
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://ubuntu.com/USN-4576-1 | vendor-advisoryx_refsource_UBUNTU |
| https://ubuntu.com/USN-4577-1 | vendor-advisoryx_refsource_UBUNTU |
| https://ubuntu.com/USN-4578-1 | vendor-advisoryx_refsource_UBUNTU |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_CONFIRM |
| https://launchpad.net/bugs/1894980 | vendor-advisoryx_refsource_UBUNTU |
| https://launchpad.net/bugs/1900141 | vendor-advisoryx_refsource_UBUNTU |
| https://git.kernel.org/linus/56230d956739b9cb1cbd… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/48bd024b8a40d73ad6b0… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/05acefb4872dae89e772… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/d1d04ef8572bc8c22265… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/b6650dab404c701d7fe0… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux kernel | Linux kernel |
Affected:
5.11-stable , < 5.11.0
(custom)
|
Date Public
2020-10-13 00:00
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CVE-2020-14386 (GCVE-0-2020-14386)
Vulnerability from nvd – Published: 2020-09-16 12:48 – Updated: 2024-08-04 12:46
VLAI
Summary
A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity.
Severity
6.7 (Medium)
Assigner
References
12 references
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|---|---|
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| http://packetstormsecurity.com/files/159565/Kerne… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
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| http://www.openwall.com/lists/oss-security/2021/09/17/2 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/09/17/4 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/09/21/1 | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
before 5.9-rc4
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CVE-2020-10781 (GCVE-0-2020-10781)
Vulnerability from nvd – Published: 2020-09-16 00:00 – Updated: 2024-08-04 11:14
VLAI
Summary
A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.
Severity
5.5 (Medium)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
before 5.8-rc6
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CVE-2020-10768 (GCVE-0-2020-10768)
Vulnerability from nvd – Published: 2020-09-15 23:13 – Updated: 2024-08-04 11:14
VLAI
Summary
A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.
Severity
5.5 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
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Impacted products
1 product
| Vendor | Product | Version | |
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| Linux Kernel | kernel |
Affected:
before 5.8-rc1
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CVE-2020-10767 (GCVE-0-2020-10767)
Vulnerability from nvd – Published: 2020-09-15 22:14 – Updated: 2024-08-04 11:14
VLAI
Summary
A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.
Severity
5.5 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
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CVE-2020-10766 (GCVE-0-2020-10766)
Vulnerability from nvd – Published: 2020-09-15 22:10 – Updated: 2024-08-04 11:14
VLAI
Summary
A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.
Severity
5.5 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
before 5.8-rc1
|
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CVE-2020-14385 (GCVE-0-2020-14385)
Vulnerability from nvd – Published: 2020-09-15 21:14 – Updated: 2024-08-04 12:46
VLAI
Summary
A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability.
Severity
5.5 (Medium)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://usn.ubuntu.com/4576-1/ | vendor-advisoryx_refsource_UBUNTU |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux Kernel | kernel |
Affected:
before 5.9-rc4
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