CVE-2017-18209: Canonical Ubuntu Linux

High severity, CVSS 8.8. EPSS: 2.9% chance of exploitation in the next 30 days.

In the GetOpenCLCachedFilesDirectory function in magick/opencl.c in ImageMagick 7.0.7, a NULL pointer dereference vulnerability occurs because a memory allocation result is not checked, related to GetOpenCLCacheDirectory.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only; version 18.04 only
• ImageMagick ImageMagick: version 7.0.7-0 only; version 7.0.7-1 only; version 7.0.7-2 only; version 7.0.7-3 only; version 7.0.7-4 only; version 7.0.7-5 only; …

Published 2018-03-01. Last modified 2026-06-17.