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.

References

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

Details

Risk Information

CVSS v2

CVSS v3