vulnerability
Ubuntu: (Multiple Advisories) (CVE-2016-9042): NTP vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Apr 18, 2017 | Jul 6, 2017 | Aug 18, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Apr 18, 2017
Added
Jul 6, 2017
Modified
Aug 18, 2025
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
ubuntu-upgrade-ntp
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