CVE-2021-28374
courier-authlib - security update
7.5
HIGH
CVSS 3.1
EPSS 1.3%
Description
The Debian courier-authlib package before 0.71.1-2 for Courier Authentication Library creates a /run/courier/authdaemon directory with weak permissions, allowing an attacker to read user information. This may include a cleartext password in some configurations. In general, it includes the user's existence, uid and gids, home and/or Maildir directory, quota, and some type of password information (such as a hash).
How to fix CVE-2021-28374
To remediate CVE-2021-28374, upgrade the affected package to a fixed version below.
- —upgrade to 0.71.1-2 or later
- —upgrade to 0.66.4-9+deb9u1 or later
Is CVE-2021-28374 being exploited?
Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0.71.1-2
- from 0, < 0.66.4-9+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 |