CVE-2020-12398
thunderbird - security update
7.5
HIGH
CVSS 3.1
EPSS 0.11%
Description
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
How to fix CVE-2020-12398
To remediate CVE-2020-12398, upgrade the affected package to a fixed version below.
- —upgrade to 1:68.9.0-1 or later
- —upgrade to 1:68.9.0-1~deb8u2 or later
- —upgrade to 1:68.9.0-1~deb9u1 or later
Is CVE-2020-12398 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1:68.9.0-1
- from 0, < 1:68.9.0-1~deb8u2
- from 0, < 1:68.9.0-1~deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |