About OS X NTP Security Update

This document describes the security content of OS X NTP Security Update.

For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website.

For information about the Apple Product Security PGP Key, see How to use the Apple Product Security PGP Key.

Where possible, CVE IDs are used to reference the vulnerabilities for further information.

To learn about other Security Updates, see Apple Security Updates.

OS X NTP Security Update

• ntpd

  Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, OS X Yosemite v10.10.1

  Impact: A remote attacker may be able to execute arbitrary code

  Description: Several issues existed in ntpd that would have allowed an attacker to trigger buffer overflows. These issues were addressed through improved error checking.

  To verify the ntpd version, type the following command in Terminal: what /usr/sbin/ntpd. This update includes the following versions:

  • Mountain Lion: ntp-77.1.1

  • Mavericks: ntp-88.1.1

  • Yosemite: ntp-92.5.1

  CVE-ID

  CVE-2014-9295 : Stephen Roettger of the Google Security Team