Heap-based buffer overflow in ImageMagick

1) Heap-based buffer overflow

EUVDB-ID: #VU32206

Risk: High

CVSSv3.1: 7.1 [AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-5688

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in The WPG parser in ImageMagick before 6.9.4-4 and 7.x before 7.0.1-5, when a memory limit is set,. A remote attacker can use vectors related to the SetImageExtent return-value check to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

The vendor has issued the following versions to address this vulnerability: 6.9.4-4, 7.0.1-5.

Vulnerable software versions

ImageMagick: 6.9.0-0 - 7.0.1-4

External links

http://www.openwall.com/lists/oss-security/2016/06/14/5
http://www.openwall.com/lists/oss-security/2016/06/17/3
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://www.securityfocus.com/bid/91283
http://blog.fuzzing-project.org/46-Various-invalid-memory-reads-in-ImageMagick-WPG,-DDS,-DCM.html
http://github.com/ImageMagick/ImageMagick/commit/aecd0ada163a4d6c769cec178955d5f3e9316f2f
http://github.com/ImageMagick/ImageMagick/commit/fc43974d34318c834fbf78570ca1a3764ed8c7d7
http://github.com/ImageMagick/ImageMagick/commits/6.9.4-4
http://github.com/ImageMagick/ImageMagick/commits/7.0.1-5

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.