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CVE-2021-4126

MEDIUM

6.5

Description

When receiving an OpenPGP/MIME signed email message that contains an additional outer MIME message layer, for example a message footer added by a mailing list gateway, Thunderbird only considered the inner signed message for the signature validity. This gave the false impression that the additional contents were also covered by the digital signature. Starting with Thunderbird version 91.4.1, only the signature that belongs to the top level MIME part will be considered for the displayed status. This vulnerability affects Thunderbird < 91.4.1.

Details CVE

Score CVSS v3.16.5

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie12/22/2022

Derniere modification4/16/2025

Sourcenvd

Observations honeypot0

Produits affectes

mozilla:thunderbird

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1732310(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2021-55/(security@mozilla.org)

https://bugzilla.mozilla.org/show_bug.cgi?id=1732310(af854a3a-2127-422b-91ae-364da2661108)

https://www.mozilla.org/security/advisories/mfsa2021-55/(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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