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Amazon Linux AMI: CVE-2018-7170: Security patch for ntp ((Multiple Advisories))

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Amazon Linux AMI: CVE-2018-7170: Security patch for ntp ((Multiple Advisories))

Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:P/A:N)
Published
03/06/2018
Created
07/25/2018
Added
05/11/2018
Modified
07/17/2021

Description

ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.

Solution(s)

  • amazon-linux-upgrade-ntp

References

  • ALAS-2018-1083
  • CVE-2018-7170

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