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CVE-2021-20232

Published: 12 March 2021

A flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potential consequences.

Priority

Low

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
gnutls28
Launchpad, Ubuntu, Debian
jammy Not vulnerable
(3.7.1-4ubuntu1)
impish Not vulnerable
(3.7.1-4ubuntu1)
trusty Does not exist

upstream
Released (3.7.1-1)
bionic Not vulnerable
(code not present)
focal
Released (3.6.13-2ubuntu1.6)
groovy Ignored
(end of life)
hirsute Not vulnerable
(3.7.1-3ubuntu1)
xenial Not vulnerable
(code not present)
Patches:
upstream: https://gitlab.com/gnutls/gnutls/-/commit/75a937d97f4fefc6f9b08e3791f151445f551cb3

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