CVE Catalog

CVE-2006-3740

High
Published: Translated: NVD NIST

Summary

Integer overflow in the scan_cidfont function in X.Org 6.8.2 and XFree86 X server allows local users to execute arbitrary code via crafted (1) CMap and (2) CIDFont font data with modified item counts in the (a) begincodespacerange, (b) cidrange, and (c) notdefrange sections.

Risk Assessment

A local attacker can take control of the X server process, leading to arbitrary code execution with the privileges of that process. This may result in privilege escalation or access to other users' data.

Recommendation

Update X.Org/XFree86 server to the latest version containing the fix. Restrict local access to trusted users until the update is applied.

Related vulnerabilities

Original NVD description (English source)

Integer overflow in the scan_cidfont function in X.Org 6.8.2 and XFree86 X server allows local users to execute arbitrary code via crafted (1) CMap and (2) CIDFont font data with modified item counts in the (a) begincodespacerange, (b) cidrange, and (c) notdefrange sections.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS