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 (5)
Scores
CVSS v3
2.8
EPSS
0.0003
EPSS Percentile
8.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Details
CWE
CWE-281
Status
published
Products (4)
docker/docker
0 - 20.10.9Go
fedoraproject/fedora
34
fedoraproject/fedora
35
mobyproject/moby
< 20.10.9
Published
Oct 04, 2021
Tracked Since
Feb 18, 2026