Vulnerability identifier: #VU38433

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-13139

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImageMagick
Client/Desktop applications / Multimedia software

Vendor: ImageMagick.org

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

In ImageMagick before 6.9.9-0 and 7.x before 7.0.6-1, the ReadOneMNGImage function in coders/png.c has an out-of-bounds read with the MNG CLIP chunk.

Mitigation
Install update from vendor's website.

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

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External links
http://www.securityfocus.com/bid/100494
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=870109
http://github.com/ImageMagick/ImageMagick/commit/22e0310345499ffe906c604428f2a3a668942b05
http://security.gentoo.org/glsa/201711-07
http://usn.ubuntu.com/3681-1/
http://www.debian.org/security/2017/dsa-4019
http://www.debian.org/security/2017/dsa-4040

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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.