| Name | CVE-2022-40303 |
| Description | An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault. |
| 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-3172-1, DSA-5271-1 |
| Debian Bugs | 1022224 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libxml2 (PTS) | buster | 2.9.4+dfsg1-7+deb10u4 | vulnerable |
| buster (security) | 2.9.4+dfsg1-7+deb10u6 | fixed | |
| bullseye (security), bullseye | 2.9.10+dfsg-6.7+deb11u4 | fixed | |
| bookworm | 2.9.14+dfsg-1.3~deb12u1 | fixed | |
| sid, trixie | 2.9.14+dfsg-1.3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libxml2 | source | buster | 2.9.4+dfsg1-7+deb10u5 | DLA-3172-1 | ||
| libxml2 | source | bullseye | 2.9.10+dfsg-6.7+deb11u3 | DSA-5271-1 | ||
| libxml2 | source | (unstable) | 2.9.14+dfsg-1.1 | 1022224 |
https://gitlab.gnome.org/GNOME/libxml2/-/issues/381
Fixed by: https://gitlab.gnome.org/GNOME/libxml2/-/commit/c846986356fc149915a74972bf198abc266bc2c0 (v2.10.3)
https://bugs.chromium.org/p/project-zero/issues/detail?id=2336