Linux · Security advisory · April 14, 2021

RHSA-2021:1193: thunderbird security update

RHSA-2021:1193, released April 14, 2021, fixes 5 CVEs in thunderbird (version 0:78.9.1-1.el8_3). None of them is reported as exploited. Patch Radar priority: High.

High
CVEs closed
5
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0104
64th percentile

Priority of the 5 CVEs

Patch now 0 Urgent 0 High 2 Routine 3

Fixed package versions

ProductReleaseFixed in
thunderbirdRHEL 80:78.9.1-1.el8_3

CVEs this fix closes

PriorityCVETitleImpactCVSSEPSSExploitation
High CVE-2021-29950 Thunderbird: Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import… 7.5 0.0085 None reported
High CVE-2021-29949 Thunderbird: When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially… 7.8 0.0032 None reported
Routine CVE-2021-23991 Thunderbird: If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity… 6.8 0.0104 None reported
Routine CVE-2021-23992 Thunderbird: Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. 4.3 0.0048 None reported
Routine CVE-2021-23993 Thunderbird: An attacker may perform a DoS attack to prevent a user from sending encrypted email to a correspondent. 6.5 0.0042 None reported
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