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Ubuntu: USN-3096-1 (CVE-2016-1547): NTP vulnerabilities

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Ubuntu: USN-3096-1 (CVE-2016-1547): NTP vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
10/05/2016
Created
07/25/2018
Added
10/07/2016
Modified
04/25/2018

Description

An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled.

Solution(s)

  • ubuntu-upgrade-ntp

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