Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mobyproject | Moby | < 20.10.9 |
| Fedoraproject | Fedora | 34 |
Related Weaknesses (CWE)
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://github.com/moby/moby/commit/bce32e5c93be4caf1a592582155b9cb837fc129aPatchThird Party Advisory
- https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://github.com/moby/moby/commit/bce32e5c93be4caf1a592582155b9cb837fc129aPatchThird Party Advisory
- https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2021-41089?
CVE-2021-41089 is a vulnerability with a CVSS score of 2.8 (LOW). 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 ...
How severe is CVE-2021-41089?
CVE-2021-41089 has been rated LOW with a CVSS base score of 2.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41089?
Check the references section above for vendor advisories and patch information. Affected products include: Mobyproject Moby, Fedoraproject Fedora.