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CVE-2023-3417

Published: 24 July 2023

Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
thunderbird
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support)
focal
Released (1:102.15.0+build1-0ubuntu0.20.04.1)
jammy
Released (1:102.15.0+build1-0ubuntu0.22.04.1)
lunar
Released (1:102.15.0+build1-0ubuntu0.23.04.1)
mantic
Released (1:102.13.0+build1-0ubuntu1)
noble
Released (1:102.13.0+build1-0ubuntu1)
trusty Ignored
(end of standard support)
upstream
Released (1:102.13.1-1)
xenial Ignored
(end of standard support)

Severity score breakdown

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