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CVE-2021-29950

Published: 22 April 2021

Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird < 78.8.1.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
thunderbird
Launchpad, Ubuntu, Debian
impish Not vulnerable
(1:78.8.1+build1-0ubuntu1)
jammy Not vulnerable
(1:78.8.1+build1-0ubuntu1)
kinetic Not vulnerable
(1:78.8.1+build1-0ubuntu1)
lunar Not vulnerable
(1:78.8.1+build1-0ubuntu1)
upstream
Released (78.8.1)
bionic
Released (1:78.8.1+build1-0ubuntu0.18.04.1)
focal
Released (1:78.8.1+build1-0ubuntu0.20.04.1)
trusty Does not exist

xenial Ignored
(end of standard support, was needs-triage)
groovy
Released (1:78.8.1+build1-0ubuntu0.20.10.1)
hirsute Not vulnerable
(1:78.8.1+build1-0ubuntu1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N