CVE-2011-0420 Information

Description

The grapheme_extract function in the Internationalization extension (Intl) for ICU for PHP 5.3.5 allows context-dependent attackers to cause a denial of service (crash) via an invalid size argument which triggers a NULL pointer dereference.

Reference

http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html http://securityreason.com/achievement_securityalert/94 http://securityreason.com/securityalert/8087 http://support.apple.com/kb/HT5002 http://svn.php.net/viewvc/php/php-src/trunk/ext/intl/grapheme/grapheme_string.c?r1=306449&r2=306448&pathrev=306449 http://www.debian.org/security/2011/dsa-2266 http://www.exploit-db.com/exploits/16182 http://www.kb.cert.org/vuls/id/210829 http://www.securityfocus.com/archive/1/516504/100/0/threaded http://www.securityfocus.com/archive/1/516518/100/0/threaded http://www.securityfocus.com/bid/46429 https://exchange.xforce.ibmcloud.com/vulnerabilities/65437