CVE-2021-41089
low-risk
Published 2021-10-04
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.
Do I need to act?
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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
2
CVSS 2.8/10
Low
LOCAL
/ HIGH complexity
Affected Vendors
References (10)
Third Party Advisory
https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4
Third Party Advisory
https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4
16
/ 100
low-risk
Severity
7/34 · Low
Exploitability
0/34 · Minimal
Exposure
9/34 · Low