CVE-2021-20231

Published: 12 March 2021

A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.

Priority

Low

CVSS 3 base score: 9.8

Status

Package Release Status
gnutls28
Launchpad, Ubuntu, Debian
Upstream
Released (3.7.1-1)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(3.7.1-3ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (3.6.13-2ubuntu1.6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(code not present)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(code not present)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://gitlab.com/gnutls/gnutls/-/commit/15beb4b193b2714d88107e7dffca781798684e7e