CVE ID:	CVE-2021-21284
Description:	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/" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.
Test IDs:	1.3.6.1.4.1.25623.1.1.2.2022.1658   1.3.6.1.4.1.25623.1.1.2.2022.1644
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-21284 https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc Debian Security Information: DSA-4865 (Google Search) https://www.debian.org/security/2021/dsa-4865 https://security.gentoo.org/glsa/202107-23 https://docs.docker.com/engine/release-notes/#20103 https://docs.docker.com/engine/release-notes/#20103 https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c https://github.com/moby/moby/releases/tag/v19.03.15 https://github.com/moby/moby/releases/tag/v19.03.15 https://github.com/moby/moby/releases/tag/v20.10.3 https://github.com/moby/moby/releases/tag/v20.10.3