Buffer overflow in pattern.c in libxslt before 1.1.24 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via an XSL style sheet file with a long XSLT "transformation match" condition that triggers a large number of steps.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9785
https://exchange.xforce.ibmcloud.com/vulnerabilities/42560
http://www.vupen.com/english/advisories/2008/2780
http://www.vupen.com/english/advisories/2008/2094/references
http://www.vupen.com/english/advisories/2008/1580/references
http://www.ubuntu.com/usn/usn-633-1
http://www.securitytracker.com/id?1020071
http://www.securityfocus.com/bid/31681
http://www.redhat.com/support/errata/RHSA-2008-0287.html
http://www.novell.com/linux/security/advisories/2008_13_sr.html
http://www.mandriva.com/security/advisories?name=MDVSA-2008:151
http://www.debian.org/security/2008/dsa-1589
http://support.apple.com/kb/HT3298
http://support.apple.com/kb/HT3216
http://security.gentoo.org/glsa/glsa-200806-02.xml
http://secunia.com/advisories/32706
http://secunia.com/advisories/32222
http://secunia.com/advisories/31363
http://secunia.com/advisories/31074
http://secunia.com/advisories/30717
http://secunia.com/advisories/30521
http://secunia.com/advisories/30393
http://secunia.com/advisories/30323
http://secunia.com/advisories/30315
http://lists.apple.com/archives/security-announce/2008/Oct/msg00001.html
http://lists.apple.com/archives/security-announce/2008//Jul/msg00001.html
http://lists.apple.com/archives/security-announce//2008/Nov/msg00001.html