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Red Hat Security Advisory

RHSA-2021:1190

thunderbird security update

Released 2021-04-14 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Fixes 5 records

Priority LOW 34

When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially attempt to open it using a filename that isn't distributed by Thunderbird.

CVSS 3.1HIGH 7.8 Local No auth User interaction EPSS 0.00316 Published 2021-06-24 Partial fix · 78.9.1 CWE-427
Priority LOW 32

If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity period of her key, but Alice's updated key has not yet been imported, an attacker may send an email containing a craf…

CVSS 3.1MEDIUM 6.8 Network No auth User interaction EPSS 0.01035 Published 2021-06-24 Partial fix · 78.9.1
Priority LOW 29

An attacker may perform a DoS attack to prevent a user from sending encrypted email to a correspondent.

CVSS 3.1MEDIUM 6.5 Network No auth User interaction EPSS 0.00423 Published 2021-06-24 Partial fix · 78.9.1 CWE-347
Priority LOW 21

Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature.

CVSS 3.1MEDIUM 4.3 Network No auth User interaction EPSS 0.00478 Published 2021-06-24 Partial fix · 78.9.1 CWE-347