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CVE-2020-12397

Publication date 7 May 2020

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

4.3 · Medium

Score breakdown

By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0.

Status

Package Ubuntu Release Status
thunderbird 20.04 LTS focal
Fixed 1:68.8.0+build2-0ubuntu0.20.04.2
19.10 eoan
Fixed 1:68.8.0+build2-0ubuntu0.19.10.2
18.04 LTS bionic
Fixed 1:68.8.0+build2-0ubuntu0.18.04.2
16.04 LTS xenial
Fixed 1:68.8.0+build2-0ubuntu0.16.04.2
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 4.3 · Medium
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

References

Related Ubuntu Security Notices (USN)

    • USN-4373-1
    • Thunderbird vulnerabilities
    • 26 May 2020

Other references