| Name | CVE-2023-42753 |
| Description | An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system. |
| 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-3623-1, DLA-3710-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | buster | 4.19.249-2 | vulnerable |
| buster (security) | 4.19.304-1 | 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 | 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 | |||
| linux-5.10 | source | buster | 5.10.197-1~deb10u1 | DLA-3623-1 |
https://www.openwall.com/lists/oss-security/2023/09/22/10
https://git.kernel.org/linus/050d91c03b28ca479df13dfb02bcd2c60dd6a878 (6.6-rc1)