CVE-2021-38502
Published: 3 November 2021
Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was configured, the MITM could obtain the authentication credentials, too. This vulnerability affects Thunderbird < 91.2.
Priority
Medium
CVSS 3 base score: 5.9
Status
| Package | Release | Status |
|---|---|---|
|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Released
(1:91.5.0+build1-0ubuntu0.18.04.1)
|
| focal |
Released
(1:91.5.0+build1-0ubuntu0.20.04.1)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Released
(1:91.3.1+build1-0ubuntu0.21.10.1)
|
|
| jammy |
Released
(1:91.3.1+build1-0ubuntu1)
|
|
| trusty |
Ignored
(out of standard support)
|
|
| upstream |
Released
(91.2)
|
|
| xenial |
Needs triage
|