Improper input validation in PHP - CVE-2015-3330
Published: December 21, 2016 / Updated: November 27, 2018
Vulnerability identifier: #VU2555
CSH Severity: Low
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-3330
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to an error in the php_handler function in sapi/apache2handler/sapi_apache2.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8, when the Apache HTTP Server 2.4.x is used. A remote attacker can cause application crash or possibly execute arbitrary code via pipelined HTTP requests that result in a "deconfigured interpreter."
The weakness exists due to an error in the php_handler function in sapi/apache2handler/sapi_apache2.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8, when the Apache HTTP Server 2.4.x is used. A remote attacker can cause application crash or possibly execute arbitrary code via pipelined HTTP requests that result in a "deconfigured interpreter."
Affected software
PHP
php5 (Ubuntu package)
Slackware Linux
php5 (Ubuntu package)
Slackware Linux
How to mitigate CVE-2015-3330
Install update from vendor's website.
PHP - addressed in versions 5.4.40, 5.5.24, 5.6.8
php5 (Ubuntu package) - addressed in versions 5.3.2-1ubuntu4.30, 5.3.10-1ubuntu3.18, 5.5.9+dfsg-1ubuntu4.9, 5.5.12+dfsg-2ubuntu4.4
php5 (Ubuntu package) - addressed in versions 5.3.2-1ubuntu4.30, 5.3.10-1ubuntu3.18, 5.5.9+dfsg-1ubuntu4.9, 5.5.12+dfsg-2ubuntu4.4