6.8

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.

Data is provided by the National Vulnerability Database (NVD)
DockerDocker Version < 19.03.15
DockerDocker Version >= 20.0.0 < 20.10.3
DebianDebian Linux Version10.0
NetappE-series Santricity Os Controller Version >= 11.0.0 <= 11.60.3
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.02% 0.039
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 6.8 2.3 4
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
nvd@nist.gov 2.7 5.1 2.9
AV:A/AC:L/Au:S/C:N/I:P/A:N
security-advisories@github.com 6.8 2.3 4
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.