Stack-based buffer overflow in the zip:// URL wrapper in PECL ZIP 1.8.3 and earlier, as bundled with PHP 5.2.0 and 5.2.1, allows remote attackers to execute arbitrary code via a long zip:// URL, as demonstrated by actively triggering URL access from a remote PHP interpreter via avatar upload or blog pingback.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32889
http://www.vupen.com/english/advisories/2007/0898
http://www.securityfocus.com/bid/22883
http://www.debian.org/security/2007/dsa-1330
http://secunia.com/advisories/25938
http://secunia.com/advisories/24514
http://secunia.com/advisories/24471
http://lists.suse.com/archive/suse-security-announce/2007-Mar/0003.html