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CVE-2023-0430

Published: 2 June 2023

Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certificate would be displayed as having a valid signature. Thunderbird versions from 68 to 102.7.0 were affected by this bug. This vulnerability affects Thunderbird < 102.7.1.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
thunderbird
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(1:102.7.1+build2-0ubuntu0.18.04.1)
focal Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

trusty Ignored
(end of standard support)
upstream
Released (1:102.7.1+1-1)
xenial Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N