CVE-2021-21284

Public on 2021-11-11
Modified on 2021-11-11
Description
A flaw was found in the `userns-remap` feature of Docker. The root user in the remapped namespace can modify files under /var/lib/docker/, leading to possible privilege escalation to the root user in the host. The highest threat from this vulnerability is to data integrity.
Severity
Medium
CVSS v3 Base Score
6.0
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 docker 2021-11-11 20:21 ALAS-2021-1550

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
NVD CVSSv2 2.7 AV:A/AC:L/Au:S/C:N/I:P/A:N
NVD CVSSv3 6.8 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N