CVE-2020-8631
cloud-init: Use of random.choice when generating random password
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 5, 2020
Updated · November 22, 2025
Description
A flaw was found in cloud-init, where it uses the random.choice function when creating sensitive random strings used for generating a random password in new instances. Depending on the instance configuration, a remote or local attacker may abuse this vulnerability to guess the password of the victim user.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-330 · Use of Insufficiently Random Values