CVE-2018-5784: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 3% chance of exploitation in the next 30 days.

In LibTIFF 4.0.9, there is an uncontrolled resource consumption in the TIFFSetDirectory function of tif_dir.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tif file. This occurs because the declared number of directory entries is not validated against the actual number of directory entries.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only
• Debian Debian Linux: version 7.0 only; version 8.0 only; version 9.0 only
• Libtiff Libtiff: version 4.0.9 only

Published 2018-01-19. Last modified 2026-06-17.