CVE-2016-5300

Name	CVE-2016-5300
Description	The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.
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-508-1, DSA-3597-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
expat (PTS)	jessie, jessie (lts)	2.1.0-6+deb8u12	fixed
	stretch (security)	2.2.0-2+deb9u5	fixed
	stretch (lts), stretch	2.2.0-2+deb9u9	fixed
	buster, buster (lts)	2.2.6-2+deb10u8	fixed
	buster (security)	2.2.6-2+deb10u7	fixed
	bullseye	2.2.10-2+deb11u5	fixed
	bullseye (security)	2.2.10-2+deb11u6	fixed
	bookworm (security), bookworm	2.5.0-1+deb12u1	fixed
	sid, trixie	2.6.4-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
expat	source	wheezy	2.1.0-1+deb7u4		DLA-508-1
expat	source	jessie	2.1.0-6+deb8u3		DSA-3597-1
expat	source	(unstable)	2.1.1-3