CVE-2018-7443: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 3.2% chance of exploitation in the next 30 days.

The ReadTIFFImage function in coders/tiff.c in ImageMagick 7.0.7-23 Q16 does not properly validate the amount of image data in a file, which allows remote attackers to cause a denial of service (memory allocation failure in the AcquireMagickMemory function in MagickCore/memory.c).

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only; version 18.04 only
• Debian Debian Linux: version 7.0 only
• ImageMagick ImageMagick: version 7.0.7-23 only

Published 2018-02-23. Last modified 2026-06-17.