6.8

CVE-2021-21284

privilege escalation in Moby

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Docker ≫ Docker Version < 19.03.15
Docker ≫ Docker Version >= 20.0.0 < 20.10.3
Debian ≫ Debian Linux Version10.0
Netapp ≫ E-series Santricity Os Controller Version >= 11.0.0 <= 11.60.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.07% 0.603
CVSS Metriken
Quelle 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.

https://www.debian.org/security/2021/dsa-4865
Third Party Advisory
https://docs.docker.com/engine/release-notes/#20103
Vendor Advisory
Release Notes
https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c
Patch
Third Party Advisory
https://github.com/moby/moby/releases/tag/v19.03.15
Third Party Advisory
Release Notes
https://github.com/moby/moby/releases/tag/v20.10.3
Third Party Advisory
Release Notes
https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc
Third Party Advisory
https://security.gentoo.org/glsa/202107-23
Patch
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210226-0005/
Third Party Advisory