CVE-2020-11868
HIGH7.5EPSS 1.5%ntp - security update
Published: 4/17/2020Modified: 4/28/2026
Also known as:DEBIAN-CVE-2020-11868
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.
Affected packages (2)
- Debian/ntpfrom 0, < 1:4.2.8p14+dfsg-1
- Debian/ntpfrom 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 |