CVE-2022-37452
exim4 - security update
9.8
CRITICAL
CVSS 3.1
EPSS 4.7%
Description
Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set.
How to fix CVE-2022-37452
To remediate CVE-2022-37452, upgrade the affected package to a fixed version below.
- Debian/exim4—upgrade to 4.94.2-5 or later
- Debian/exim4—upgrade to 4.92-8+deb10u7 or later
Is CVE-2022-37452 being exploited?
Low — EPSS is 4.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.94.2-5
- from 0, < 4.92-8+deb10u7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |