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CVE-2011-0420

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.

POC

Reference

- http://securityreason.com/achievement_securityalert/94

- http://securityreason.com/securityalert/8087

- http://www.exploit-db.com/exploits/16182

Github

- https://github.com/mudongliang/LinuxFlaw

- https://github.com/oneoy/cve-