CVE-2021-21284

In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using "--userns-remap", if the root user in the remapped namespace has access to the host filesystem they can modify files under "/var/lib/docker/<remapping>" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:docker:docker:*:*:*:*:*:*:*:*
cpe:2.3:a:docker:docker:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-02-02 18:15

Updated : 2024-02-28 18:08


NVD link : CVE-2021-21284

Mitre link : CVE-2021-21284

CVE.ORG link : CVE-2021-21284


JSON object : View

Products Affected

netapp

  • e-series_santricity_os_controller

debian

  • debian_linux

docker

  • docker
CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')