The rfc1867_post_handler function in main/rfc1867.c in PHP before 5.3.7 does not properly restrict filenames in multipart/form-data POST requests, which allows remote attackers to conduct absolute path traversal attacks, and possibly create or overwrite arbitrary files, via a crafted upload request, related to a "file path injection vulnerability."
https://exchange.xforce.ibmcloud.com/vulnerabilities/67999
http://www.securityfocus.com/bid/49241
http://www.securityfocus.com/bid/48259
http://www.redhat.com/support/errata/RHSA-2011-1423.html
http://www.php.net/archive/2011.php#id2011-08-18-1
http://www.php.net/ChangeLog-5.php#5.3.7
http://www.mandriva.com/security/advisories?name=MDVSA-2011:165
http://www.debian.org/security/2011/dsa-2266
http://svn.php.net/viewvc?view=revision&revision=312103
http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/NEWS?view=markup&pathrev=312103
http://support.apple.com/kb/HT5130
http://securitytracker.com/id?1025659
http://secunia.com/advisories/44874
http://rhn.redhat.com/errata/RHSA-2012-0071.html
http://openwall.com/lists/oss-security/2011/06/13/15
http://openwall.com/lists/oss-security/2011/06/12/5
http://marc.info/?l=bugtraq&m=133469208622507&w=2
http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html