Apple · Macos X · CVE-2013-5190
**Name of the Vulnerable Software and Affected Versions**
Mac OS X versions prior to 10.9
**Description**
The issue is related to the improper implementation of certificate-revocation checks in Smart Card Services. This allows remote attackers to cause a denial of service, specifically a Smart Card usage outage, by interfering with the revocation-check procedure.
**Recommendations**
For versions prior to 10.9, update to version 10.9 or later to resolve the issue.