Stack-based buffer overflow in PHP - CVE-2010-3064

Vulnerability details

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

The vulnerability exists due to a boundary error within the php_mysqlnd_auth_write function in the Mysqlnd extension when processing a long (1) username or (2) database name argument to the (a) mysql_connect or (b) mysqli_connect function. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

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

Affected software

How to mitigate CVE-2010-3064

External References

• 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-2010-059-php-php_mysqlnd_auth_write-stack-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

Related Security Bulletins

• Multiple vulnerabilities in PHP
• Gentoo update for PHP