| Name | CVE-2023-28484 |
| Description | In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-3405-1, DSA-5391-1 |
| Debian Bugs | 1034436 |
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, sid | 2.9.14+dfsg-1.2 | 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+deb10u6 | DLA-3405-1 | ||
| libxml2 | source | bullseye | 2.9.10+dfsg-6.7+deb11u4 | DSA-5391-1 | ||
| libxml2 | source | (unstable) | 2.9.14+dfsg-1.2 | 1034436 |
https://bugzilla.redhat.com/show_bug.cgi?id=2185994
Related (but not strictly part of the CVE): https://gitlab.gnome.org/GNOME/libxml2/-/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6 (v2.10.4)
Fixed by: https://gitlab.gnome.org/GNOME/libxml2/-/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f (v2.10.4)