libxml2 2.9.0 and earlier allows context-dependent attackers to cause a denial of service (CPU and memory consumption) via an XML file containing an entity declaration with long replacement text and many references to this entity, aka "internal entity expansion" with linear complexity.
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
http://lists.opensuse.org/opensuse-updates/2013-03/msg00112.html
http://lists.opensuse.org/opensuse-updates/2013-03/msg00114.html
http://marc.info/?l=bugtraq&m=142798889927587&w=2
https://bugzilla.redhat.com/show_bug.cgi?id=912400
http://secunia.com/advisories/52662
http://secunia.com/advisories/55568
https://git.gnome.org/browse/libxml2/commit/?id=23f05e0c33987d6605387b300c4be5da2120a7ab
http://www.debian.org/security/2013/dsa-2652
http://www.mandriva.com/security/advisories?name=MDVSA-2013:056
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
Published: 2013-04-25
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
Severity: Medium