| Name | CVE-2023-28327 |
| Description | A NULL pointer dereference flaw was found in the UNIX protocol in net/unix/diag.c In unix_diag_get_exact in the Linux Kernel. The newly allocated skb does not have sk, leading to a NULL pointer. This flaw allows a local user to crash or potentially cause a denial of service. |
| 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) | bullseye | 5.10.223-1 | fixed |
| bullseye (security) | 5.10.234-1 | fixed |
| bookworm | 6.1.129-1 | fixed |
| bookworm (security) | 6.1.135-1 | fixed |
| sid, trixie | 6.12.27-1 | 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 | (not affected) | | | |
| linux | source | bullseye | 5.10.162-1 | | | |
| linux | source | (unstable) | 6.1.4-1 | | | |
Notes
[buster] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/b3abe42e94900bdd045c472f9c9be620ba5ce553 (6.1)