CVE-2018-1311

Name	CVE-2018-1311
Description	The Apache Xerces-C 3.0.0 to 3.2.2 XML parser contains a use-after-free error triggered during the scanning of external DTDs. This flaw has not been addressed in the maintained version of the library and has no current mitigation other than to disable DTD processing. This can be accomplished via the DOM using a standard parser feature, or via SAX using the XERCES_DISABLE_DTD environment variable.
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)
NVD severity	medium
Debian Bugs	947431

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
xerces-c (PTS)	stretch	3.1.4+debian-2+deb9u1	vulnerable
	buster	3.2.2+debian-1	vulnerable
	bullseye, sid	3.2.3+debian-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
xerces-c	source	(unstable)	(unfixed)			947431

Notes

[jessie] - xerces-c <postponed> (slow upstream interest, proper fix likely to break ABI compatibility)
http://xerces.apache.org/xerces-c/secadv/CVE-2018-1311.txt
https://issues.apache.org/jira/browse/XERCESC-2188
http://vault.centos.org/7.7.1908/updates/Source/SPackages/xerces-c-3.1.1-10.el7_7.src.rpm (fix with memory leak)
Mitigation by setting the XERCES_DISABLE_DTD environment variable