| Name | CVE-2023-23454 |
| Description | cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). |
| 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-3349-1, DLA-3403-1, DSA-5324-1 |
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 | fixed | |
| bullseye | 5.10.178-3 | fixed | |
| bullseye (security) | 5.10.191-1 | fixed | |
| bookworm | 6.1.38-1 | fixed | |
| bookworm (security) | 6.1.52-1 | fixed | |
| sid, trixie | 6.5.3-1 | fixed | |
| linux-5.10 (PTS) | buster (security) | 5.10.179-5~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 | 4.19.282-1 | DLA-3403-1 | ||
| linux | source | bullseye | 5.10.162-1 | DSA-5324-1 | ||
| linux | source | (unstable) | 6.1.7-1 | |||
| linux-5.10 | source | buster | 5.10.162-1~deb10u1 | DLA-3349-1 |
https://git.kernel.org/linus/caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12