Denial of service in ImageMagick

Published: 2018-09-05

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-16328 CVE-2018-16329
CWE-ID	CWE-476 CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	ImageMagick Client/Desktop applications / Multimedia software
Vendor	ImageMagick.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Null pointer dereference

EUVDB-ID: #VU14609

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16328

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 - 7.0.8-4

External links

http://github.com/ImageMagick/ImageMagick/issues/1224

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.

2) Null pointer dereference

EUVDB-ID: #VU14610