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CVE-2018-8956

Published: 6 May 2020

ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker's behalf and send them to the attacker.

Priority

Low

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
bionic Needs triage

groovy Ignored
(end of life)
hirsute Ignored
(end of life)
xenial Needs triage

jammy Needs triage

impish Ignored
(end of life)
kinetic Does not exist

lunar Does not exist

eoan Ignored
(end of life)
focal Needs triage

trusty Needs triage

upstream Needs triage

mantic Does not exist

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L