CVE-2012-0876

Name	CVE-2012-0876
Description	The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DSA-2525-1
NVD severity	medium
Debian Bugs	663579, 687672

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
expat (PTS)	stretch (security), stretch	2.2.0-2+deb9u3	fixed
	buster, buster (security)	2.2.6-2+deb10u1	fixed
	bullseye	2.2.10-1	fixed
	sid	2.2.10-2	fixed
xmlrpc-c (PTS)	stretch	1.33.14-4	fixed
	buster	1.33.14-8	fixed
	bullseye, sid	1.33.14-9	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
expat	source	squeeze	2.0.1-7+squeeze1		DSA-2525-1
expat	source	(unstable)	2.1.0~beta3-1			663579
python2.6	source	(unstable)	(not affected)
xmlrpc-c	source	(unstable)	1.16.33-3.2	low		687672

[squeeze] - xmlrpc-c <no-dsa> (Minor issue)
- python2.6 <not-affected> (configured with --with-system-expat since 2.6.6-4)