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CVE PROGRAM SOURCE RECORD8.5 High

CVE-2026-56003

libXfont2 computeProps Property Buffer Heap Buffer Overflow

Description

A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties() before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

X.Org libXfont2

Default version status: unaffected

  • 0 to < 2.0.8affected

References