#VU12902 NULL pointer dereference in PHP

Published: 2018-05-21

Vulnerability identifier: #VU12902

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9934


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Universal components / Libraries / Scripting languages

Vendor: PHP Group

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.

Update to version 5.6.28 or 7.0.13.

Vulnerable software versions

PHP: 5.6.0 - 5.6.27, 7.0.0 - 7.0.12

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability