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NTP: Improper Input Validation (CVE-2016-9042)

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NTP: Improper Input Validation (CVE-2016-9042)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
06/04/2018
Created
02/28/2023
Added
02/23/2023
Modified
03/01/2023

Description

An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin timestamp check (TEST2) causing the reply to be dropped and creating a denial of service condition.

Solution(s)

  • ntp-upgrade-latest

References

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