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CVE-2019-25035

Published: 27 April 2021

** DISPUTED ** Unbound before 1.9.5 allows an out-of-bounds write in sldns_bget_token_par. 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

kinetic Not vulnerable

groovy Not vulnerable
(1.11.0-1)
hirsute Not vulnerable

bionic
Released (1.6.7-1ubuntu2.4)
focal
Released (1.9.4-2ubuntu1.2)
jammy 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/fa23ee8f31ba9a018c720ea822faaee639dc7a9c

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