CVE-2021-41089
`docker cp` allows unexpected chmod of host files
- State
- Published
- Severity
- 2.8 Low
- Published
- Oct 4, 2021
- Updated
- Aug 4, 2024
- Reserved
- Sep 15, 2021
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 2.8 Low | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N | GitHub_M |
Weaknesses
- CWE-281 Improper Preservation of Permissions
Affected Products
| Product | Versions |
|---|---|
mobymoby |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.