RHSA-2020:2295
Vulnerability from csaf_redhat - Published: 2020-05-26 14:33 - Updated: 2026-02-23 18:18Summary
Red Hat Security Advisory: openvswitch2.13 security, bug fix and enhancement update
Severity
Important
Notes
Topic: An update for openvswitch2.13 is now available for Fast Datapath for Red Hat Enterprise Linux 8.
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.
Details: Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic.
Security Fix(es):
* dpdk: librte_vhost Malicious guest could cause segfault by sending invalid Virtio descriptor (CVE-2020-10725)
* dpdk: librte_vhost Interger overflow in vhost_user_set_log_base() (CVE-2020-10722)
* dpdk: librte_vhost Integer truncation in vhost_user_check_and_alloc_queue_pair() (CVE-2020-10723)
* dpdk: librte_vhost Missing inputs validation in Vhost-crypto (CVE-2020-10724)
* dpdk: librte_vhost VHOST_USER_GET_INFLIGHT_FD message flooding to result in a DoS (CVE-2020-10726)
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):
* DPDK virtio_user lack of notifications make vhost_net+napi stops tx buffers (BZ#1803082)
* Update internal DPDK to 19.11.1 (BZ#1824825)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A vulnerability was found in DPDK versions 18.05 and above. A missing check for an integer overflow in vhost_user_set_log_base() could result in a smaller memory map than requested, possibly allowing memory corruption.
6.7 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:2295
A memory corruption issue was found in DPDK versions 17.05 and above. This flaw is caused by an integer truncation on the index of a payload. Under certain circumstances, the index (a UInt) is copied and truncated into a uint16, which can lead to out of bound indexing and possible memory corruption.
6.7 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:2295
A vulnerability was found in DPDK versions 18.11 and above. The vhost-crypto library code is missing validations for user-supplied values, potentially allowing an information leak through an out-of-bounds memory read.
5.1 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:2295
A flaw was found in DPDK version 19.11 and above that allows a malicious guest to cause a segmentation fault of the vhost-user backend application running on the host, which could result in a loss of connectivity for the other guests running on that host. This is caused by a missing validity check of the descriptor address in the function `virtio_dev_rx_batch_packed()`.
7.7 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:2295
A vulnerability was found in DPDK versions 19.11 and above. A malicious container that has direct access to the vhost-user socket can keep sending VHOST_USER_GET_INFLIGHT_FD messages, causing a resource leak (file descriptors and virtual memory), which may result in a denial of service.
4.4 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:2295
References
Acknowledgments
Reporter
Ferruh Yigit
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},
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"title": "Statement"
},
{
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
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"8Base-Fast-Datapath:python3-openvswitch2.13-0:2.13.0-25.el8fdp.1.x86_64",
"8Base-Fast-Datapath:python3-openvswitch2.13-debuginfo-0:2.13.0-25.el8fdp.1.ppc64le",
"8Base-Fast-Datapath:python3-openvswitch2.13-debuginfo-0:2.13.0-25.el8fdp.1.s390x",
"8Base-Fast-Datapath:python3-openvswitch2.13-debuginfo-0:2.13.0-25.el8fdp.1.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:2295"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
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"8Base-Fast-Datapath:openvswitch2.13-test-0:2.13.0-25.el8fdp.1.noarch",
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "dpdk: librte_vhost VHOST_USER_GET_INFLIGHT_FD message flooding to result in a DoS"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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