Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a long XML entity name.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6103
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11760
https://exchange.xforce.ibmcloud.com/vulnerabilities/45085
https://bugzilla.redhat.com/show_bug.cgi?id=461015
http://www.vupen.com/english/advisories/2009/1621
http://www.vupen.com/english/advisories/2009/1522
http://www.vupen.com/english/advisories/2009/1298
http://www.vupen.com/english/advisories/2009/1297
http://www.vupen.com/english/advisories/2008/2822
http://www.us-cert.gov/cas/techalerts/TA09-133A.html
http://www.ubuntu.com/usn/USN-815-1
http://www.securityfocus.com/bid/31126
http://www.redhat.com/support/errata/RHSA-2008-0886.html
http://www.redhat.com/support/errata/RHSA-2008-0884.html
http://www.debian.org/security/2008/dsa-1654
http://support.avaya.com/elmodocs2/security/ASA-2009-025.htm
http://support.avaya.com/elmodocs2/security/ASA-2008-400.htm
http://support.apple.com/kb/HT3639
http://support.apple.com/kb/HT3613
http://support.apple.com/kb/HT3550
http://support.apple.com/kb/HT3549
http://securitytracker.com/id?1020855
http://security.gentoo.org/glsa/glsa-200812-06.xml
http://secunia.com/advisories/36235
http://secunia.com/advisories/36173
http://secunia.com/advisories/35379
http://secunia.com/advisories/35074
http://secunia.com/advisories/35056
http://secunia.com/advisories/33722
http://secunia.com/advisories/33715
http://secunia.com/advisories/32974
http://secunia.com/advisories/32807
http://secunia.com/advisories/32280
http://secunia.com/advisories/32265
http://secunia.com/advisories/31982
http://secunia.com/advisories/31868
http://secunia.com/advisories/31860
http://secunia.com/advisories/31855
http://secunia.com/advisories/31558
http://lists.opensuse.org/opensuse-security-announce/2008-09/msg00004.html
http://lists.apple.com/archives/security-announce/2009/May/msg00000.html
http://lists.apple.com/archives/security-announce/2009/Jun/msg00005.html