Advisories » MGASA-2021-0494

Updated cloud-init packages fix security vulnerability

Publication date: 29 Oct 2021
Modification date: 29 Oct 2021
Type: security
Affected Mageia releases : 8
CVE: CVE-2021-3429

Description

cloud-init has the ability to generate and set a randomized password for
system users. This functionality is enabled at runtime by passing
cloud-config data such as: 'chpasswd: list: | user1:RANDOM'

When instructing cloud-init to set a random password for a new user
account, versions before 21.1.19 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 (CVE-2021-3429).
                

References

• https://bugs.mageia.org/show_bug.cgi?id=28991
• https://www.debian.org/lts/security/2021/dla-2601
• https://github.com/canonical/cloud-init/releases/tag/21.2
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3429

SRPMS

8/core

• cloud-init-20.2-2.1.mga8