Vulnerability Details : CVE-2021-41089
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.
Products affected by CVE-2021-41089
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:mobyproject:moby:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41089
0.03%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41089
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.4
|
MEDIUM | AV:L/AC:M/Au:N/C:P/I:P/A:P |
3.4
|
6.4
|
NIST | |
6.3
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |
2.0
|
3.7
|
NIST | |
2.8
|
LOW | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N |
1.1
|
1.4
|
GitHub, Inc. |
CWE ids for CVE-2021-41089
-
The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.Assigned by:
- nvd@nist.gov (Secondary)
- security-advisories@github.com (Primary)
References for CVE-2021-41089
-
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
-
https://github.com/moby/moby/commit/bce32e5c93be4caf1a592582155b9cb837fc129a
Merge pull request #4 from moby/20.10-ghsa-v994-f8vw-g7j4-chroot-mkdir · moby/moby@bce32e5 · GitHubPatch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/
[SECURITY] Fedora 35 Update: moby-engine-20.10.9-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4
`docker cp` allows unexpected chmod of host files · Advisory · moby/moby · GitHubThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/
[SECURITY] Fedora 34 Update: moby-engine-20.10.9-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
Jump to