CVE-2016-9042
5.9
MEDIUM
CVSS 3.1
EPSS 1.8%
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.
How to fix CVE-2016-9042
To remediate CVE-2016-9042, upgrade the affected package to a fixed version below.
- —upgrade to 1:4.2.8p10+dfsg-1 or later
Is CVE-2016-9042 being exploited?
Low — EPSS is 1.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:4.2.8p10+dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |