CVE ID:	CVE-2021-38502
Description:	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.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-38502 Debian Security Information: DSA-5034 (Google Search) https://www.debian.org/security/2022/dsa-5034 https://bugzilla.mozilla.org/show_bug.cgi?id=1733366 https://bugzilla.mozilla.org/show_bug.cgi?id=1733366 https://www.mozilla.org/security/advisories/mfsa2021-47/ https://www.mozilla.org/security/advisories/mfsa2021-47/ https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html