[security-alerts] FW: [SA22280] PHP "_ecalloc" Integer Overflow Vulnerability

["Kazennov, Vladimir" <Vladimir.Kazennov@xxxxxxxxxx>]

> 
> TITLE:
> PHP "_ecalloc" Integer Overflow Vulnerability
> 
> SECUNIA ADVISORY ID:
> SA22280
> 
> VERIFY ADVISORY:
> http://secunia.com/advisories/22280/
> 
> CRITICAL:
> Moderately critical
> 
> IMPACT:
> DoS, System access
> 
> WHERE:
> From remote
> 
> SOFTWARE:
> PHP 5.1.x
> http://secunia.com/product/6796/
> 
> DESCRIPTION:
> A vulnerability has been reported in PHP, which can be exploited by
> malicious people to cause a DoS (Denial of Service) or potentially
> compromise a vulnerable system.
> 
> The vulnerability is caused due to an integer overflow within the
> "_ecalloc" function. This can potentially be exploited to execute
> arbitrary code via specially crafted requests if a PHP script
> allocates memory based on attacker supplied data.
> 
> SOLUTION:
> The vulnerability has been fixed in the CVS repository:
> http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_alloc.c?r1=1.16
> 1&r2=1.162
> 
> PROVIDED AND/OR DISCOVERED BY:
> Disclosed via vendor CVS commit.
> 
> ORIGINAL ADVISORY:
> http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_alloc.c?r1=1.16
> 1&r2=1.162