CVE-2021-41091

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-41091
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-41091.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-41091
Aliases
Related
Published
2021-10-04T21:15:12Z
Modified
2024-10-12T08:27:15.842417Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where the data directory (typically /var/lib/docker) contained subdirectories with insufficiently restricted permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs. When containers included executable programs with extended permission bits (such as setuid), unprivileged Linux users could discover and execute those programs. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers should be stopped and restarted for the permissions to be fixed. For users unable to upgrade limit access to the host to trusted users. Limit access to host volumes to trusted containers.

References

Affected packages

Debian:11 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
20.10.5+dfsg1-1+deb11u1

Affected versions

20.*

20.10.5+dfsg1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
20.10.10+dfsg1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
20.10.10+dfsg1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Git / github.com/moby/moby

Affected ranges

Type
GIT
Repo
https://github.com/moby/moby
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

0.*

0.0.3

Other

autorun/1

docs-v1.*

docs-v1.12.0-rc4-2016-07-15

upstream/0.*

upstream/0.1.1
upstream/0.1.2
upstream/0.1.3
upstream/0.1.4

v0.*

v0.1.0
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.1.7
v0.1.8
v0.10.0
v0.11.0
v0.11.1
v0.12.0
v0.2.0
v0.2.1
v0.2.2
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v0.4.8
v0.5.0
v0.5.1
v0.5.2
v0.5.3
v0.6.0
v0.6.1
v0.6.2
v0.6.3
v0.6.4
v0.6.5
v0.6.6
v0.6.7
v0.7.0
v0.7.0-rc5
v0.7.0-rc6
v0.7.1
v0.7.2
v0.7.3
v0.7.4
v0.7.5
v0.7.6
v0.8.0
v0.8.1
v0.9.0

v1.*

v1.0.0
v1.0.1
v1.1.0
v1.1.1
v1.1.2
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.4.0
v1.4.1

v17.*

v17.12.0-ce-rc1

v18.*

v18.04.0-ce-rc1
v18.06.0-ce-rc1
v18.09.0-ce-tp0

v19.*

v19.03.0-beta1
v19.03.0-beta2
v19.03.0-beta3

v20.*

v20.10.0
v20.10.0-beta1
v20.10.0-rc1
v20.10.0-rc2
v20.10.1
v20.10.2
v20.10.3
v20.10.4
v20.10.5
v20.10.6
v20.10.7
v20.10.8