Heap-based buffer over-read in ImageMagick - CVE-2017-11639
Published: May 21, 2018
Vulnerability identifier: #VU12863
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-11639
CWE-ID: CWE-126
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ImageMagick.org
Affected software:
ImageMagick
ImageMagick
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the WriteCIPImage() function in coders/cip.c, related to the GetPixelLuma function in MagickCore/pixel-accessor.h, due to heap-based buffer over-read. A remote attacker can trick the victim into opening a specially crafted file, trigger memory corruption and cause the service to crash.
How to mitigate CVE-2017-11639
Install update from vendor's website.