| Name | CVE-2023-39192 |
| Description | A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds read by setting the size fields with a value beyond the array boundaries, 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) |
| References | DLA-3710-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bullseye | 5.10.223-1 | fixed |
| bullseye (security) | 5.10.234-1 | fixed | |
| bookworm | 6.1.129-1 | fixed | |
| bookworm (security) | 6.1.128-1 | fixed | |
| trixie | 6.12.20-1 | fixed | |
| sid | 6.12.21-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | buster | 4.19.304-1 | DLA-3710-1 | ||
| linux | source | bullseye | 5.10.197-1 | |||
| linux | source | bookworm | 6.1.55-1 | |||
| linux | source | (unstable) | 6.5.3-1 |
https://www.zerodayinitiative.com/advisories/ZDI-23-1490/
https://git.kernel.org/linus/69c5d284f67089b4750d28ff6ac6f52ec224b330 (6.6-rc1)