Reachable Assertion The advisory has been revoked - it doesn't affect any version of package kernel-core (opens in a new tab)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-RHEL9-KERNELCORE-9708172
- published15 Apr 2025
- disclosed4 May 2023
Introduced: 4 May 2023
CVE-2023-2156 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol. This issue results from the lack of proper handling of user-supplied data, which can lead to an assertion failure. This may allow an unauthenticated remote attacker to create a denial of service condition on the system.
References
- https://access.redhat.com/security/cve/CVE-2023-2156
- http://www.openwall.com/lists/oss-security/2023/05/17/8
- http://www.openwall.com/lists/oss-security/2023/05/17/9
- http://www.openwall.com/lists/oss-security/2023/05/18/1
- http://www.openwall.com/lists/oss-security/2023/05/19/1
- https://bugzilla.redhat.com/show_bug.cgi?id=2196292
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
- https://security.netapp.com/advisory/ntap-20230622-0001/
- https://www.debian.org/security/2023/dsa-5448
- https://www.debian.org/security/2023/dsa-5453
- https://www.zerodayinitiative.com/advisories/ZDI-23-547/