CVE-2020-28896
mutt - security update
5.3
MEDIUM
CVSS 3.1
EPSS 0.10%
Description
Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.
How to fix CVE-2020-28896
To remediate CVE-2020-28896, upgrade the affected package to a fixed version below.
- —upgrade to 2.0.2-1 or later
- —upgrade to 1.7.2-1+deb9u4 or later
- —upgrade to 20201120+dfsg.1-1 or later
Is CVE-2020-28896 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.0.2-1
- from 0, < 1.7.2-1+deb9u4
- from 0, < 20201120+dfsg.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |