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…

PriorityP423medium5.5CVSS 3.1

AVLACLPRLUINSUCHINAN

EPSS

0.22%

12.3th percentile

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.

Affected

7 ranges

Vendor	Product	Version range	Fixed in
canonical	cloud-init	< 21.2	21.2
canonical	cloud-init	>= 0 < 20.4.1-2	20.4.1-2
canonical	cloud-init	>= 0 < 20.4.1-2	20.4.1-2
canonical	cloud-init	>= 0 < 20.4.1-2	20.4.1-2
canonical	cloud-init	>= 0 < 20.4.1-2	20.4.1-2
canonical_ltd	cloud-init	< 21.2	21.2
debian	cloud-init	< cloud-init 20.4.1-2 (bookworm)	cloud-init 20.4.1-2 (bookworm)

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

osv5.5MEDIUM

vendor_debian5.5MEDIUM

vendor_redhat5.5MEDIUM

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