CVE-2021-3429
cloud-init - security update
5.5
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
When instructing cloud-init to set a random password for a new user account, versions before 21.2 would write that password to the world-readable log file /var/log/cloud-init-output.log. This could allow a local user to log in as another user.
How to fix CVE-2021-3429
To remediate CVE-2021-3429, upgrade the affected package to a fixed version below.
- Debian/cloud-init—upgrade to 20.4.1-2 or later
- —upgrade to 0.7.9-2+deb9u1 or later
Is CVE-2021-3429 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 20.4.1-2
- from 0, < 0.7.9-2+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |