| Name | CVE-2023-39193 |
| Description | A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| linux (PTS) | buster | 4.19.249-2 | vulnerable |
| buster (security) | 4.19.289-2 | vulnerable |
| bullseye | 5.10.197-1 | fixed |
| bullseye (security) | 5.10.191-1 | vulnerable |
| bookworm | 6.1.55-1 | fixed |
| bookworm (security) | 6.1.52-1 | vulnerable |
| trixie | 6.5.10-1 | fixed |
| sid | 6.5.13-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| linux | source | bullseye | 5.10.197-1 | | | |
| linux | source | bookworm | 6.1.55-1 | | | |
| linux | source | (unstable) | 6.5.3-1 | | | |
Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-1491/
https://git.kernel.org/linus/e99476497687ef9e850748fe6d232264f30bc8f9 (6.6-rc1)