Out-of-bounds read in ImageMagick - CVE-2016-6491
Published: December 13, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32212
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-6491
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Buffer overflow in the Get8BIMProperty function in MagickCore/property.c in ImageMagick before 6.9.5-4 and 7.x before 7.0.2-6 allows remote attackers to cause a denial of service (out-of-bounds read, memory leak, and crash) via a crafted image.
Affected software
ImageMagick
Gentoo Linux
imagemagick (Alpine package)
Gentoo Linux
imagemagick (Alpine package)
How to mitigate CVE-2016-6491
Install update from vendor's website.
ImageMagick - addressed in versions 6.9.5-4, 7.0.2-6
imagemagick (Alpine package) - update to 6.9.6.8-r0
imagemagick (Alpine package) - update to 6.9.6.8-r0
External References
- http://www.openwall.com/lists/oss-security/2016/07/28/13
- http://www.openwall.com/lists/oss-security/2016/07/28/15
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://www.securityfocus.com/bid/92186
- http://www.securitytracker.com/id/1036501
- https://github.com/ImageMagick/ImageMagick/blob/6.9.5-4/ChangeLog
- https://github.com/ImageMagick/ImageMagick/commit/dd84447b63a71fa8c3f47071b09454efc667767b
- https://security.gentoo.org/glsa/201611-21