| Name | CVE-2023-6377 |
| Description | A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved. |
| 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-3686-1, DLA-3686-2, DSA-5576-1, DSA-5576-2 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| xorg-server (PTS) | buster | 2:1.20.4-1+deb10u4 | vulnerable |
| buster (security) | 2:1.20.4-1+deb10u14 | fixed | |
| bullseye | 2:1.20.11-1+deb11u11 | fixed | |
| bullseye (security) | 2:1.20.11-1+deb11u13 | fixed | |
| bookworm | 2:21.1.7-3+deb12u5 | fixed | |
| bookworm (security) | 2:21.1.7-3+deb12u7 | fixed | |
| sid, trixie | 2:21.1.12-1 | fixed | |
| xwayland (PTS) | bookworm | 2:22.1.9-1 | vulnerable |
| trixie | 2:23.2.4-1 | fixed | |
| sid | 2:23.2.6-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| xorg-server | source | buster | 2:1.20.4-1+deb10u12 | DLA-3686-2 | ||
| xorg-server | source | bullseye | 2:1.20.11-1+deb11u10 | DSA-5576-2 | ||
| xorg-server | source | bookworm | 2:21.1.7-3+deb12u4 | DSA-5576-2 | ||
| xorg-server | source | (unstable) | 2:21.1.10-1 | |||
| xwayland | source | (unstable) | 2:23.2.3-1 |
[bookworm] - xwayland <no-dsa> (Minor issue; Xwayland shouldn't be running as root)
https://lists.x.org/archives/xorg-announce/2023-December/003435.html
Fixed by: https://gitlab.freedesktop.org/xorg/xserver/-/commit/0c1a93d319558fe3ab2d94f51d174b4f93810afd