| Name | CVE-2023-6817 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3711-1, DSA-5593-1, DSA-5594-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | buster | 4.19.249-2 | fixed |
| buster (security) | 4.19.304-1 | fixed | |
| bullseye | 5.10.209-2 | fixed | |
| bullseye (security) | 5.10.205-2 | fixed | |
| bookworm | 6.1.76-1 | fixed | |
| bookworm (security) | 6.1.85-1 | fixed | |
| trixie | 6.6.15-2 | fixed | |
| sid | 6.7.12-1 | fixed | |
| linux-5.10 (PTS) | buster (security) | 5.10.209-2~deb10u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | buster | (not affected) | |||
| linux | source | bullseye | 5.10.205-2 | DSA-5594-1 | ||
| linux | source | bookworm | 6.1.69-1 | DSA-5593-1 | ||
| linux | source | (unstable) | 6.6.8-1 | |||
| linux-5.10 | source | buster | 5.10.205-2~deb10u1 | DLA-3711-1 |
[buster] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/317eb9685095678f2c9f5a8189de698c5354316a (6.7-rc5)
https://www.openwall.com/lists/oss-security/2023/12/22/6