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CVE-2020-12397

Date: May 22, 2020

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.

Severity Score

4.3

Related Resources (9)

Url: https://bugzilla.mozilla.org/show_bug.cgi?id=1617370

Url: https://usn.ubuntu.com/4373-1/

Url: https://www.mozilla.org/security/advisories/mfsa2020-18/

Url: https://security.gentoo.org/glsa/202005-03

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-12397

Url: https://access.redhat.com/security/cve/CVE-2020-12397

Url: https://security-tracker.debian.org/tracker/CVE-2020-12397

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-12397

Url: https://www.mend.io/vulnerability-database/CVE-2020-12397

Severity Score

4.3

Weakness Type (CWE)

Origin Validation Error

CWE-346

CVSS v3.1

Base Score:	4.3
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	LOW
Availability (A):	NONE

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

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