Use After Free Affecting perf package, versions <0:4.18.0-477.13.1.el8_8
Threat Intelligence
EPSS
0.04% (6th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-PERF-5506643
- published 9 May 2023
- disclosed 2 May 2023
Introduced: 2 May 2023
CVE-2023-32233 Open this link in a new tabHow to fix?
Upgrade Centos:8 perf to version 0:4.18.0-477.13.1.el8_8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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
- 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://news.ycombinator.com/item?id=35879660
- https://www.openwall.com/lists/oss-security/2023/05/08/4
- 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://lists.debian.org/debian-lts-announce/2023/06/msg00008.html
- https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
- https://security.netapp.com/advisory/ntap-20230616-0002/
- https://www.debian.org/security/2023/dsa-5402
CVSS Scores
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