This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-56002 →

DEBIAN-CVE-2026-56002

A heap bufferflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8 allows attackers authenticated as X client to execu...

Original description

The description as published by the source.

A heap bufferflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8 allows attackers authenticated as X client to execute code within the X server.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 libxfont

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.0.6-1+deb12u1"}]}]

Debian:13 libxfont

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.0.6-1+deb13u1"}]}]

Debian:14 libxfont

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.0.8-1"}]}]

References

advisory security-tracker.debian.org