About OS X NTP Security Update

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

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

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