Rapid7 Vulnerability & Exploit Database

Ubuntu: USN-5248-1 (CVE-2021-38502): Thunderbird vulnerabilities

Back to Search

Ubuntu: USN-5248-1 (CVE-2021-38502): Thunderbird vulnerabilities

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
10/15/2021
Created
01/25/2022
Added
01/22/2022
Modified
01/22/2022

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.

Solution(s)

  • ubuntu-upgrade-thunderbird

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;