CVE-2018-17100: Canonical Ubuntu Linux

High severity, CVSS 8.8. EPSS: 2.5% chance of exploitation in the next 30 days.

An issue was discovered in LibTIFF 4.0.9. There is a int32 overflow in multiply_ms in tools/ppm2tiff.c, which can cause a denial of service (crash) or possibly have unspecified other impact via a crafted image file.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only
• Debian Debian Linux: version 8.0 only
• Libtiff Libtiff: version 4.0.9 only

Published 2018-09-16. Last modified 2026-06-17.