CVE-2012-4564: Canonical Ubuntu Linux

Medium severity, CVSS 6.8. EPSS: 13.5% chance of exploitation in the next 30 days.

ppm2tiff does not check the return value of the TIFFScanlineSize function, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted PPM image that triggers an integer overflow, a zero-memory allocation, and a heap-based buffer overflow.

Affected products

• Canonical Ubuntu Linux: version 8.04 only; version 10.04 only; version 11.10 only; version 12.04 only; version 12.10 only
• Debian Debian Linux: version 6.0 only; version 7.0 only
• Libtiff Libtiff: up to and including 4.0.3
• Opensuse Opensuse: version 11.4 only
• Red Hat Enterprise Linux Desktop: version 5.0 only; version 6.0 only
• Red Hat Enterprise Linux Eus: version 6.3 only
• Red Hat Enterprise Linux Server: version 5.0 only; version 6.0 only
• Red Hat Enterprise Linux Workstation: version 5.0 only; version 6.0 only

Published 2012-11-11. Last modified 2026-06-16.