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CVE-2018-10920

Published: 2 August 2018

Improper input validation bug in DNS resolver component of Knot Resolver before 2.4.1 allows remote attacker to poison cache.

Priority

Medium

Cvss 3 Severity Score

6.8

Score breakdown

Status

Package Release Status
knot-resolver
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(3.2.1-3ubuntu2)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Not vulnerable
(5.4.4-1)
kinetic Not vulnerable
(5.5.1-5)
lunar Not vulnerable
(5.6.0-1)
mantic Not vulnerable
(5.6.0-1)
trusty Does not exist

upstream
Released (2.4.1)
xenial Needed

Patches:
upstream: https://gitlab.nic.cz/knot/knot-resolver/-/commit/d2dd680d54c1753c1ad1f973be733d879cea1a73
upstream: https://gitlab.nic.cz/knot/knot-resolver/-/commit/0d20fe3cc4c6a7cb4fb0add89d1ed5ea85f7b58d

Severity score breakdown

Parameter Value
Base score 6.8
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Changed
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N