CVE-2016-5688 Information

Description

The WPG parser in ImageMagick before 6.9.4-4 and 7.x before 7.0.1-5 when a memory limit is set allows remote attackers to have unspecified impact via vectors related to the SetImageExtent return-value check which trigger (1) a heap-based buffer overflow in the SetPixelIndex function or an invalid write operation in the (2) ScaleCharToQuantum or (3) SetPixelIndex functions.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

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 https://blog.fuzzing-project.org/46-Various-invalid-memory-reads-in-ImageMagick-WPG-DDS-DCM.html https://github.com/ImageMagick/ImageMagick/commit/aecd0ada163a4d6c769cec178955d5f3e9316f2f https://github.com/ImageMagick/ImageMagick/commit/fc43974d34318c834fbf78570ca1a3764ed8c7d7 https://github.com/ImageMagick/ImageMagick/commits/6.9.4-4 https://github.com/ImageMagick/ImageMagick/commits/7.0.1-5

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1