php is vulnerable to denial of service (DoS). The vulnerability exists as a bug in the PHP Streams component caused the PHP interpreter to crash if an FTP wrapper connection was made through an HTTP proxy. A remote attacker could possibly trigger this issue if a PHP script accepted an untrusted URL to connect to.
bugs.php.net/bug.php?id=54092
lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
support.apple.com/kb/HT5002
www.mandriva.com/security/advisories?name=MDVSA-2011:052
www.mandriva.com/security/advisories?name=MDVSA-2011:053
www.php.net/ChangeLog-5.php
www.php.net/security/crypt_blowfish.php
www.redhat.com/support/errata/RHSA-2011-1423.html
www.securityfocus.com/bid/46970
www.vupen.com/english/advisories/2011/0744
access.redhat.com/errata/RHSA-2011:1423
access.redhat.com/security/updates/classification/#moderate