| Name | CVE-2021-3537 |
| Description | A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability. |
| 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-2653-1, ELA-424-1 |
| Debian Bugs | 988123 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libxml2 (PTS) | jessie, jessie (lts) | 2.9.1+dfsg1-5+deb8u17 | fixed |
| stretch (security) | 2.9.4+dfsg1-2.2+deb9u7 | fixed | |
| stretch (lts), stretch | 2.9.4+dfsg1-2.2+deb9u11 | fixed | |
| buster, buster (lts) | 2.9.4+dfsg1-7+deb10u9 | fixed | |
| buster (security) | 2.9.4+dfsg1-7+deb10u6 | fixed | |
| bullseye | 2.9.10+dfsg-6.7+deb11u4 | fixed | |
| bullseye (security) | 2.9.10+dfsg-6.7+deb11u5 | fixed | |
| bookworm | 2.9.14+dfsg-1.3~deb12u1 | fixed | |
| sid, trixie | 2.12.7+dfsg+really2.9.14-0.2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libxml2 | source | jessie | 2.9.1+dfsg1-5+deb8u10 | ELA-424-1 | ||
| libxml2 | source | stretch | 2.9.4+dfsg1-2.2+deb9u4 | DLA-2653-1 | ||
| libxml2 | source | buster | 2.9.4+dfsg1-7+deb10u2 | |||
| libxml2 | source | (unstable) | 2.9.10+dfsg-6.6 | 988123 |
https://gitlab.gnome.org/GNOME/libxml2/-/issues/243
https://gitlab.gnome.org/GNOME/libxml2/-/issues/244
https://gitlab.gnome.org/GNOME/libxml2/-/issues/245
https://gitlab.gnome.org/GNOME/libxml2/-/commit/babe75030c7f64a37826bb3342317134568bef61