CVE-2020-12397 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1617370 https://security.gentoo.org/glsa/202005-03 https://usn.ubuntu.com/4373-1/ https://www.mozilla.org/security/advisories/mfsa2020-18/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

4.3