Linux · Oracle Linux · Security advisory · April 15, 2021

ELSA-2021-1193: thunderbird security update

ELSA-2021-1193, released April 15, 2021, fixes 3 CVEs in thunderbird (version 0:78.9.1-1.0.1.el8_3). None of them is reported as exploited. Patch Radar priority: Routine.

Routine
CVEs closed
3
None rated Critical
Exploited
0
None reported
Highest CVSS
6.8
Base score, 0 to 10
Highest EPSS
0.0104
64th percentile

Priority of the 3 CVEs

Patch now 0 Urgent 0 High 0 Routine 3

Fixed package versions

ProductReleaseFixed in
thunderbirdol 80:78.9.1-1.0.1.el8_3

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
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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