Heap-based buffer overflow in PHP - CVE-2010-3063

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in The php_mysqlnd_read_error_from_line function in the Mysqlnd extension in PHP 5.3 through 5.3.2 does not properly calculate a buffer length, which. A remote attacker can use crafted inputs that cause a negative length value to be used. to trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

How to mitigate CVE-2010-3063

Sources

• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html
• http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00000.html
• http://php-security.org/2010/05/31/mops-2010-058-php-php_mysqlnd_read_error_from_line-buffer-overflow-vulnerability/index.html
• http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/NEWS?r1=298701&r2=298703&pathrev=298703
• http://svn.php.net/viewvc?view=revision&revision=298703