CVE-2021-38371
exim4 - security update
7.5
HIGH
CVSS 3.1
EPSS 2.2%
Description
The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.
How to fix CVE-2021-38371
To remediate CVE-2021-38371, upgrade the affected package to a fixed version below.
- Debian/exim4—upgrade to 4.94.2-7+deb11u4 or later
- Debian/exim4—upgrade to 4.94.2-7+deb11u4 or later
Is CVE-2021-38371 being exploited?
Low — EPSS is 2.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.94.2-7+deb11u4
- from 0, < 4.94.2-7+deb11u4
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:N/I:H/A:N |