NULL pointer dereference in PHP - CVE-2016-9934

 

NULL pointer dereference in PHP - CVE-2016-9934

Published: May 21, 2018


Vulnerability identifier: #VU12902
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-9934
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: PHP Group
Affected software:
PHP

Detailed vulnerability description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in ext/wddx/wddx.c due to NULL pointer dereference. A remote attacker can submit crafted serialized data in a wddxPacket XML document, as demonstrated by a PDORow string, and cause the service to crash.

How to mitigate CVE-2016-9934

Update to version 5.6.28 or 7.0.13.

Sources