Vulnerability · NVD

CVE-2021-23992

CVE-2021-23992, medium severity (CVSS 4.3): 1 tracked app concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 4.3
Exploitation: 0.5 %
Tracked apps: 1
Still exposed: 0

Published on 2021-06-24

Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird < 78.9.1.

Attack vector : Network No privileges required

Show raw CVSS vector

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

EPSS 0.48% exploit very unlikely percentile 38.9%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected <78.9.1 Fixed in 78.9.1 Latest tracked 157.0 patched

Observed affected builds (13)

78.8.1 78.7.1 78.6.1 78.4.0 78.3.2 78.2.1 78.1.1 78.1.0 78.0.1 78.0 68.10.0 68.9.0 68.8.0

Vulnerable CPE configurations (1)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<78.9.1	cpe:2.3:a:mozilla:thunderbird::::::::

View on NVD ↗ Advisory · bugzilla.mozilla.org Advisory · www.mozilla.org

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