CVE-2008-4236: Apple Mac OS X

High severity, CVSS 7.1. EPSS: 1.9% chance of exploitation in the next 30 days.

Apple Type Services (ATS) in Apple Mac OS X 10.5 before 10.5.6 allows remote attackers to cause a denial of service (infinite loop) via a crafted embedded font in a PDF file.

Affected products

• Apple Mac OS X: up to and including 10.5.5; version 10.5 only; version 10.5.1 only; version 10.5.2 only; version 10.5.3 only; version 10.5.4 only
• Apple Mac OS X Server: up to and including 10.5.5; version 10.5 only; version 10.5.1 only; version 10.5.2 only; version 10.5.3 only; version 10.5.4 only

Published 2008-12-17. Last modified 2026-06-16.