high7.8
CVE-2023-6817
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
Impact
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free. We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 5.6 before 5.10.204 from 5.11 before 5.15.143 from 5.16 before 6.1.68 from 6.2 before 6.6.7 Version 6.7 |
Weakness classification
References
- NVD record
- CVE.org record
- http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html
- http://www.openwall.com/lists/oss-security/2023/12/22/13
- http://www.openwall.com/lists/oss-security/2023/12/22/6
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=317eb9685095678f2c9f5a8189de698c5354316a
- https://kernel.dance/317eb9685095678f2c9f5a8189de698c5354316a
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html