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CVE-2023-50762

Published: 20 December 2023

When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown to the user. This is because the text was interpreted as a MIME message and the first paragraph was always treated as an email header section. A digitally signed text from a different context, such as a signed GIT commit, could be used to spoof an email message. This vulnerability affects Thunderbird < 115.6.

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
thunderbird
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support)
focal
Released (1:115.6.0+build2-0ubuntu0.20.04.1)
jammy
Released (1:115.6.0+build2-0ubuntu0.22.04.1)
lunar
Released (1:115.6.0+build2-0ubuntu0.23.04.1)
mantic
Released (1:115.6.0+build2-0ubuntu0.23.10.1)
trusty Ignored
(end of standard support)
upstream
Released (1:115.6.0-1)
xenial Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N