CVE-2023-6817
Use-after-free in Linux kernel's netfilter: nf_tables component
HIGH 7.8EPSS 0.3%
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
- Linux · Kernel
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.33% chance of exploitation in the next 30 days, 25th percentile
- Published
- 2023-12-18
- Updated
- 2026-10-14
Exploit collections (2)
- linux/kernelctf/CVE-2023-6817_lts_cosgoogle/security-research
- linux/kernelctf/CVE-2023-6817_mitigationgoogle/security-research
Security advisories
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=317eb968509…
- https://kernel.dance/317eb9685095678f2c9f5a8189de698c5354316a