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Ubuntu: USN-3707-1 (CVE-2018-7184): NTP vulnerabilities

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Ubuntu: USN-3707-1 (CVE-2018-7184): NTP vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
03/06/2018
Created
07/25/2018
Added
07/13/2018
Modified
09/12/2020

Description

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.

Solution(s)

  • ubuntu-upgrade-ntp

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