Heap-based buffer overflow in 'mbstring' extension for PHP

Summary
The host is running PHP and is prone to Buffer Overflow vulnerability.
Impact
Successful exploitation could allow attackers to execute arbitrary code via a crafted string containing an HTML entity. Impact Level: Application
Solution
Upgrade to version 5.2.7 or later, http://www.php.net/downloads.php
Insight
The flaw is due to error in mbfilter_htmlent.c file in the mbstring extension. These can be exploited via mb_convert_encoding, mb_check_encoding, mb_convert_variables, and mb_parse_str functions.
Affected
PHP version 4.3.0 to 5.2.6 on all running platform.
References