CVE-2011-3336: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 6.5% chance of exploitation in the next 30 days.

regcomp in the BSD implementation of libc is vulnerable to denial of service due to stack exhaustion.

Affected products

• Apple Mac OS X: from 10.6.0, up to and including 10.7.2
• Freebsd Freebsd: version 8.2 only
• OpenBSD OpenBSD: version 5.0 only
• PHP PHP: from 5.3.0, up to and including 5.3.10

Published 2020-02-12. Last modified 2026-06-16.