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CVE-2020-12663

Published: 19 May 2020

Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.

Notes

AuthorNote
mdeslaur
intrusive backport to xenial

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
unbound
Launchpad, Ubuntu, Debian
bionic
Released (1.6.7-1ubuntu2.3)
eoan
Released (1.9.0-2ubuntu1.1)
trusty Needed

upstream
Released (1.10.1-1)
xenial Needed

impish Not vulnerable
(1.10.1-1)
hirsute Not vulnerable
(1.10.1-1)
focal
Released (1.9.4-2ubuntu1.1)
groovy Not vulnerable
(1.10.1-1)
jammy Not vulnerable
(1.10.1-1)
kinetic Not vulnerable
(1.10.1-1)
lunar Not vulnerable
(1.10.1-1)
mantic Not vulnerable
(1.10.1-1)
Patches:
upstream: https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt

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