CVE-2016-4449

Name	CVE-2016-4449
Description	XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.
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-503-1, DSA-3593-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libxml2 (PTS)	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	Origin
libxml2	source	wheezy	2.8.0+dfsg1-7+wheezy6	DLA-503-1
libxml2	source	jessie	2.9.1+dfsg1-5+deb8u2	DSA-3593-1
libxml2	source	(unstable)	2.9.3+dfsg1-1.1

https://bugzilla.gnome.org/show_bug.cgi?id=761430
https://gitlab.gnome.org/GNOME/libxml2/-/commit/b1d34de46a11323fccffa9fadeb33be670d602f5 (v2.9.4)