CVE-2018-9133: Canonical Ubuntu Linux

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

ImageMagick 7.0.7-26 Q16 has excessive iteration in the DecodeLabImage and EncodeLabImage functions (coders/tiff.c), which results in a hang (tens of minutes) with a tiny PoC file. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tiff file.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only; version 18.04 only
• ImageMagick ImageMagick: version 7.0.7-26 only

Published 2018-03-30. Last modified 2026-06-17.