Improper Input Validation The advisory has been revoked - it doesn't affect any version of package frr-contrib (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-FRRCONTRIB-5877361
- published31 Aug 2023
- disclosed29 Aug 2023
Introduced: 29 Aug 2023
CVE-2023-38802 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream frr-contrib package and not the frr-contrib package as distributed by RHEL.
FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation).
References
- https://access.redhat.com/security/cve/CVE-2023-38802
- https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JLG64IF3FU7V76K4TKCCXVNEE6P2VUDO/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LMJNX44SMJM25JZO7XWHDQCOB4SNJPIE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXR6PIVY4SWO7HDT4EY733H4X32SCPM4/
- https://news.ycombinator.com/item?id=37305800
- https://www.debian.org/security/2023/dsa-5495