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CVE-2022-29824

Published: 3 May 2022

In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well.

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
bionic
Released (2.9.4+dfsg1-6.1ubuntu1.6)
focal
Released (2.9.10+dfsg-5ubuntu0.20.04.3)
impish
Released (2.9.12+dfsg-4ubuntu0.2)
jammy
Released (2.9.13+dfsg-1ubuntu0.1)
trusty
Released (2.9.1+dfsg1-3ubuntu4.13+esm3)
upstream
Released (2.9.14)
xenial
Released (2.9.3+dfsg1-1ubuntu0.7+esm2)
Patches:
upstream: https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a2408e09f13652049e5ffb0d26196b02ebab
upstream: https://gitlab.gnome.org/GNOME/libxml2/-/commit/6c283d83eccd940bcde15634ac8c7f100e3caefd