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CVE-2019-25042

Published: 27 April 2021

** DISPUTED ** Unbound before 1.9.5 allows an out-of-bounds write via a compressed name in rdata_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
unbound
Launchpad, Ubuntu, Debian
impish Not vulnerable

jammy Not vulnerable

bionic
Released (1.6.7-1ubuntu2.4)
focal
Released (1.9.4-2ubuntu1.2)
groovy Not vulnerable
(1.11.0-1)
hirsute Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

trusty Needed

upstream
Released (1.9.6-1)
xenial Needed

mantic Not vulnerable

Patches:
upstream: https://github.com/NLnetLabs/unbound/commit/6c3a0b54ed8ace93d5b5ca7b8078dc87e75cd640

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H