CVE-2020-11868
ntp - security update
7.5
HIGH
CVSS 3.1
EPSS 1.5%
Description
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp.
How to fix CVE-2020-11868
To remediate CVE-2020-11868, upgrade the affected package to a fixed version below.
- Debian/ntp—upgrade to 1:4.2.8p14+dfsg-1 or later
- —upgrade to 1:4.2.6.p5+dfsg-7+deb8u3 or later
Is CVE-2020-11868 being exploited?
Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1:4.2.8p14+dfsg-1
- from 0, < 1:4.2.6.p5+dfsg-7+deb8u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |