CVE-2013-5173: Apple Mac OS X

Low severity, CVSS 2.1. EPSS: 0.3% chance of exploitation in the next 30 days.

The random-number generator in the kernel in Apple Mac OS X before 10.9 provides lengthy exclusive access for processing of large requests, which allows local users to cause a denial of service (temporary generator outage) via an application that requires many random numbers.

Affected products

• Apple Mac OS X: up to and including 10.8.5; version 10.8.0 only; version 10.8.1 only; version 10.8.2 only; version 10.8.3 only; version 10.8.4 only; …

Published 2013-10-24. Last modified 2026-06-16.