#VU14609 Null pointer dereference in ImageMagick - CVE-2018-16328

Vulnerability identifier: #VU14609

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-16328

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImageMagick
Client/Desktop applications / Multimedia software

Vendor: ImageMagick.org

Description

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

The vulnerability exists in the CheckEventLogging function of ImageMagick due to boundary error when processing malicious input. A remote attacker can trick the victim into accessing an image file that submits malicious input, trigger a NULL pointer dereference condition in the CheckEventLogging function, as defined in the MagickCore/log.c source code file and cause the service to crash.

Mitigation
Update to version 7.0.8-8.

Vulnerable software versions

ImageMagick: 7.0.0-0, 7.0.1-0 - 7.0.1-10, 7.0.2-0 - 7.0.2-10, 7.0.3-0 - 7.0.3-10, 7.0.4-0 - 7.0.4-10, 7.0.5-0 - 7.0.5-10, 7.0.6-0 - 7.0.6-10, 7.0.7-0 Q16 - 7.0.7-28, 7.0.8-3 - 7.0.8-4

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External links
https://github.com/ImageMagick/ImageMagick/issues/1224

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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.