CVE-2010-1866 Information

Description

The dechunk filter in PHP 5.3 through 5.3.2 when decoding an HTTP chunked encoding stream allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size which bypasses a signed comparison related to an integer overflow in the chunk size decoder.

Reference

http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html http://php-security.org/2010/05/02/mops-2010-003-php-dechunk-filter-signed-comparison-vulnerability/index.html