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CVE-2020-15685

Publication date 31 December 2020

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

8.8 · High

Score breakdown

During the plaintext phase of the STARTTLS connection setup, protocol commands could have been injected and evaluated within the encrypted session. This vulnerability affects Thunderbird < 78.7.

Status

Package Ubuntu Release Status
thunderbird 23.04 lunar
Fixed 1:78.7.0+build2-0ubuntu1
22.10 kinetic
Fixed 1:78.7.0+build2-0ubuntu1
22.04 LTS jammy
Fixed 1:78.7.0+build2-0ubuntu1
21.10 impish
Fixed 1:78.7.0+build2-0ubuntu1
21.04 hirsute
Fixed 1:78.7.0+build2-0ubuntu1
20.10 groovy
Fixed 1:78.7.1+build1-0ubuntu0.20.10.4
20.04 LTS focal
Fixed 1:78.7.1+build1-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 1:78.8.1+build1-0ubuntu0.18.04.1
16.04 LTS xenial Ignored end of standard support, was needed
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-4736-1
    • Thunderbird vulnerabilities
    • 16 February 2021

Other references