CVE-2012-0655: Apple Mac OS X

Medium severity, CVSS 6.4. EPSS: 1.2% chance of exploitation in the next 30 days.

libsecurity in Apple Mac OS X before 10.7.4 does not properly restrict the length of RSA keys within X.509 certificates, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by conducting a spoofing or network-sniffing attack during communication with a site that uses a short key.

Affected products

• Apple Mac OS X: up to and including 10.7.3; version 10.0 only; version 10.0.0 only; version 10.0.1 only; version 10.0.2 only; version 10.0.3 only; …
• Apple Mac OS X Server: up to and including 10.7.3; version 10.0 only; version 10.0.0 only; version 10.0.1 only; version 10.0.2 only; version 10.0.3 only; …

Published 2012-05-11. Last modified 2026-06-16.