CVE-2020-12397

Publication date 7 May 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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

Show unmaintained releases

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)