SB2016091202 - Heap-based buffer overflow in PHP
Published: September 12, 2016 Updated: November 27, 2018
Security Bulletin ID
SB2016091202
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2016-7134)
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.
Remediation
Install update from vendor's website.
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