CVE-2020-11868
Published: 17 April 2020
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ntp Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Needs triage
|
|
| trusty |
Needs triage
|
|
| upstream |
Released
(1:4.2.8p14+dfsg-1)
|
|
| hirsute |
Ignored
(end of life)
|
|
| groovy |
Ignored
(end of life)
|
|
| xenial |
Needs triage
|
|
| jammy |
Needs triage
|
|
| impish |
Ignored
(end of life)
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
|
ntpsec Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| hirsute |
Ignored
(end of life)
|
|
| groovy |
Ignored
(end of life)
|
|
| jammy |
Needs triage
|
|
| impish |
Ignored
(end of life)
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Needs triage
|
|
| mantic |
Needs triage
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |