#VU16137 Heap-based buffer overflow in PHP - CVE-2016-7134
Published: November 27, 2018
Vulnerability identifier: #VU16137
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-7134
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PHP
PHP
Software vendor:
PHP Group
PHP Group
Description
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.
External links
- 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