CVE-2018-12373

Publication date 5 July 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

Description

dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward. This vulnerability affects Thunderbird < 52.9.

Status

Package Ubuntu Release Status
thunderbird 18.04 LTS bionic
Fixed 1:52.9.1+build3-0ubuntu0.18.04.1
17.10 artful
Fixed 1:52.9.1+build3-0ubuntu0.17.10.1
16.04 LTS xenial
Fixed 1:52.9.1+build3-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 1:52.9.1+build3-0ubuntu0.14.04.1

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-3714-1
    • Thunderbird vulnerabilities
    • 12 July 2018

Other references