Heap-based buffer overflow in PHP - CVE-2016-7134

Vulnerability details

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

The vulnerability exists due to a boundary error in ext/curl/interface.c in PHP 7.x before 7.0.10. A remote attacker can use a long string that is mishandled in a curl_escape call. 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.

Affected software

How to mitigate CVE-2016-7134

External References

• http://openwall.com/lists/oss-security/2016/09/02/9
• http://www.php.net/ChangeLog-7.php
• http://www.securityfocus.com/bid/92766
• http://www.securitytracker.com/id/1036680
• https://bugs.php.net/bug.php?id=72674
• https://github.com/php/php-src/commit/72dbb7f416160f490c4e9987040989a10ad431c7?w=1
• https://security.gentoo.org/glsa/201611-22

Related Security Bulletins

• Heap-based buffer overflow in PHP
• Slackware Linux update for php