Integer overflow in the phar_parse_tarfile function in tar.c in the phar extension in PHP before 5.3.14 and 5.4.x before 5.4.4 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted tar file that triggers a heap-based buffer overflow.
https://bugzilla.redhat.com/show_bug.cgi?id=823594
https://bugs.php.net/bug.php?id=61065
http://www.php.net/ChangeLog-5.php
http://support.apple.com/kb/HT5501
http://openwall.com/lists/oss-security/2012/05/22/10
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00003.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=158d8a6b088662ce9d31e0c777c6ebe90efdc854