CVE-2021-3537

NameCVE-2021-3537
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2653-1
Debian Bugs988123

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml2 (PTS)bullseye2.9.10+dfsg-6.7+deb11u4fixed
bullseye (security)2.9.10+dfsg-6.7+deb11u5fixed
bookworm2.9.14+dfsg-1.3~deb12u1fixed
sid, trixie2.12.7+dfsg+really2.9.14-0.2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2sourcestretch2.9.4+dfsg1-2.2+deb9u4DLA-2653-1
libxml2sourcebuster2.9.4+dfsg1-7+deb10u2
libxml2source(unstable)2.9.10+dfsg-6.6988123

Notes

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

Search for package or bug name: Reporting problems