CVE-2018-16643: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 3.1% chance of exploitation in the next 30 days.

The functions ReadDCMImage in coders/dcm.c, ReadPWPImage in coders/pwp.c, ReadCALSImage in coders/cals.c, and ReadPICTImage in coders/pict.c in ImageMagick 7.0.8-4 do not check the return value of the fputc function, which allows remote attackers to cause a denial of service via a crafted image file.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only
• Debian Debian Linux: version 8.0 only
• ImageMagick ImageMagick: version 7.0.8-4 only

Published 2018-09-06. Last modified 2026-06-17.