Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-64k-debug-devel-matched (opens in a new tab)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-KERNEL64KDEBUGDEVELMATCHED-11457395
- published5 Aug 2025
- disclosed2 May 2023
Introduced: 2 May 2023
CVE-2023-32233 (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-64k-debug-devel-matched package and not the kernel-64k-debug-devel-matched package as distributed by RHEL.
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.
References
- https://access.redhat.com/security/cve/CVE-2023-32233
- http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
- http://www.openwall.com/lists/oss-security/2023/05/15/5
- https://bugzilla.redhat.com/show_bug.cgi?id=2196105
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1592a89942e9678f7d9c8030efa777c0d57edab
- https://github.com/torvalds/linux/commit/c1592a89942e9678f7d9c8030efa777c0d57edab
- https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html
- https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
- https://news.ycombinator.com/item?id=35879660
- https://security.netapp.com/advisory/ntap-20230616-0002/
- https://www.debian.org/security/2023/dsa-5402
- https://www.openwall.com/lists/oss-security/2023/05/08/4
- https://github.com/oferchen/POC-CVE-2023-32233
- https://www.exploit-db.com/exploits/52549