CVE-2021-38502 Affecting thunderbird-debugsource package, versions <0:91.2.0-1.el8_4


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.11% (44th percentile)

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  • Snyk IDSNYK-ROCKY8-THUNDERBIRDDEBUGSOURCE-3287325
  • published3 Feb 2023
  • disclosed3 Nov 2021

Introduced: 3 Nov 2021

CVE-2021-38502  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 thunderbird-debugsource to version 0:91.2.0-1.el8_4 or higher.
This issue was patched in RLSA-2021:3838.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird-debugsource package and not the thunderbird-debugsource package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1