| Name | CVE-2023-43787 |
| Description | A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges. |
| 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-3602-1, DSA-5517-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libx11 (PTS) | bullseye (security), bullseye | 2:1.7.2-1+deb11u2 | fixed |
| bookworm, bookworm (security) | 2:1.8.4-2+deb12u2 | fixed |
| sid, trixie | 2:1.8.7-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.openwall.com/lists/oss-security/2023/10/03/1
Fixed by: https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/7916869d16bdd115ac5be30a67c3749907aea6a0
Hardening: https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/91f887b41bf75648df725a4ed3be036da02e911e
https://jfrog.com/blog/xorg-libx11-vulns-cve-2023-43786-cve-2023-43787-part-one/
https://jfrog.com/blog/xorg-libx11-vulns-cve-2023-43786-cve-2023-43787-part-two/