Integer overflow in the NumberFormatter::getSymbol (aka numfmt_get_symbol) function in PHP 5.3.3 and earlier allows context-dependent attackers to cause a denial of service (application crash) via an invalid argument.
http://www.vupen.com/english/advisories/2011/0077
http://www.vupen.com/english/advisories/2011/0021
http://www.vupen.com/english/advisories/2011/0020
http://www.ubuntu.com/usn/USN-1042-1
http://www.securityfocus.com/bid/45119
http://www.securityfocus.com/archive/1/515142/100/0/threaded
http://www.php.net/ChangeLog-5.php
http://www.mandriva.com/security/advisories?name=MDVSA-2010:255
http://www.mandriva.com/security/advisories?name=MDVSA-2010:254
http://www.kb.cert.org/vuls/id/479900
http://www.exploit-db.com/exploits/15722
http://svn.php.net/viewvc?view=revision&revision=305571
http://support.apple.com/kb/HT4581
http://secunia.com/advisories/47674
http://secunia.com/advisories/42812
http://lists.opensuse.org/opensuse-updates/2012-01/msg00035.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.html
http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html