CVE-2013-0339 Information

Description

libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function which allows remote attackers to cause a denial of service (resource consumption) send HTTP requests to intranet servers or read arbitrary files via a crafted XML document aka an XML External Entity (XXE) issue. NOTE: it could be argued that because libxml2 already provides the ability to disable external entity expansion the responsibility for resolving this issue lies with application developers; according to this argument this entry should be REJECTed and each affected application would need its own CVE.

Reference

http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html http://openwall.com/lists/oss-security/2013/02/21/24 http://openwall.com/lists/oss-security/2013/02/22/3 http://seclists.org/oss-sec/2013/q4/182 http://seclists.org/oss-sec/2013/q4/184 http://seclists.org/oss-sec/2013/q4/188 http://secunia.com/advisories/52662 http://secunia.com/advisories/54172 http://secunia.com/advisories/55568 http://www.debian.org/security/2013/dsa-2652 http://www.openwall.com/lists/oss-security/2013/04/12/6 http://www.ubuntu.com/usn/USN-1904-1 http://www.ubuntu.com/usn/USN-1904-2 https://bugzilla.redhat.com/show_bug.cgi?id=915149 https://git.gnome.org/browse/libxml2/commit/?id=4629ee02ac649c27f9c0cf98ba017c6b5526070f