What is CVE-2021-3429?

CVE-2021-3429 is a medium-severity vulnerability in Canonical Ltd. Cloud-Init, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2023-04-19.

How severe is CVE-2021-3429?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Information disclosure in Canonical Ltd. Cloud-Init

CVE-2021-3429

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.

EPSS: 0.002 (12.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Canonical Ltd. Cloud-init — versions 0
Canonical Cloud-init

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

security@ubuntu.com (Patch, patch)

Frequently asked questions

What is CVE-2021-3429?: CVE-2021-3429 is a medium-severity vulnerability in Canonical Ltd. Cloud-Init, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2023-04-19.
How severe is CVE-2021-3429?: Medium severity. CVSS v3 base score is 5.5 out of 10.