CVE-2015-1804: X Libxfont

High severity, CVSS 8.5. EPSS: 5% chance of exploitation in the next 30 days.

The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly perform type conversion for metrics values, which allows remote authenticated users to cause a denial of service (out-of-bounds memory access) and possibly execute arbitrary code via a crafted BDF font file.

Affected products

• X Libxfont: up to and including 1.4.8; version 1.5.0 only

Published 2015-03-20. Last modified 2026-06-17.