CVE-2021-41089

medium

Description

Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where attempting to copy files using `docker cp` into a specially-crafted container can result in Unix file permission changes for existing files in the host’s filesystem, widening access to others. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers do not need to be restarted.

References

https://github.com/moby/moby/commit/bce32e5c93be4caf1a592582155b9cb837fc129a

https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4

https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/

https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/

https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf

Details

Source: MITRE

Published: 2021-10-04

Updated: 2022-06-14

Type: CWE-281

Risk Information

CVSS v2

Base Score: 4.4

Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 6.3

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Impact Score: 3.7

Exploitability Score: 2

Severity: MEDIUM