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NTP Bug 3044

Processing spoofed server packets

  • Date Resolved: 02 June 2016; Dev (4.3.93) 02 June 2016
  • References: Sec 3044 / CVE-2016-4954 / VU#321640
  • Affects: ntp-4, up to but not including ntp-4.2.8p8, and ntp-4.3.0 up to, but not including ntp-4.3.93.
  • CVSS2: LOW 2.6 (AV:N/AC:H/Au:N/C:N/I:N/A:P)
  • CVSS3: LOW 3.7 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
  • Summary: An attacker who is able to spoof packets with correct origin timestamps from enough servers before the expected response packets arrive at the target machine can affect some peer variables and, for example, cause a false leap indication to be set.
  • Mitigation:
  • Credit: This weakness was discovered by Jakub Prokes of Red Hat.


This topic: Main > SecurityNotice > NtpBug3044
Topic revision: r1 - 2016-06-02 - 12:40:36 - HarlanStenn
 
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