Apple Releases OS X NTP Security Update For Yosemite, Mavericks, and Moutain Lion
Apple has released the OS X NTP Security Update patch for OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, OS X Yosemite v10.10.1. Neither OS X 10.7 Lion nor the older, but more popular 10.6 Snow Leopard are is not addressed by this update.
The patch, which is recommended for all users, addresses a vulnerability that could allow a remote attacker to execute arbitrary code due to several issues existed in ntpd that would let such an attacker trigger buffer overflows — issues that have been addressed through improved error checking.
This update includes the following versions:
Mountain Lion: ntp-77.1.1
File Size: 1.9 MB
System Requirements
OS X Mountain Lion v10.8.5
http://support.apple.com/kb/DL1781
Mavericks: ntp-88.1.1
File Size: 2.0 MB
System Requirements
OS X Mavericks v10.9.5
http://support.apple.com/kb/DL1783
Yosemite: ntp-92.5.1
File Size: 2.1 MB
System Requirements
OS X Yosemite v10.10.1
http://support.apple.com/kb/DL1782
For more information on the security content of this update see http://support.apple.com/kb/HT1222
and
https://support.apple.com/en-us/HT6601