CVE-2021-41089

Aliases:GHSA-v994-f8vw-g7j4GO-2024-2913
Advisory lineage Upstream: 0 Downstream: 15
Modified
Published: 04 Oct 2021, 20:20
Last modified:04 Aug 2024, 02:59

Vulnerability Summary

Overall Risk (default)
medium
25/100
CVSS Score
6.3 MEDIUM
v3.1 (nvd)
EPSS Score
0.03% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Oct 2021, 20:20
Published
Vulnerability first disclosed
04 Aug 2024, 02:59
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•LOW•Score: 2.8CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
  • v3.1•MEDIUM•Score: 6.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
  • v2.0•MEDIUM•Score: 4.4AV:L/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.03%• Percentile: 9%

Techniques & Countermeasures

  • CWE-281•Improper Preservation of Permissions

    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.

Affected Systems

  • fedoraproject•fedora

    34 | 35

  • github.com/docker•docker

    < 20.10.9+incompatible | < 20.10.9

  • github.com/moby•moby

    < 20.10.9+incompatible

  • moby•moby

    < 20.10.9

  • mobyproject•moby

    < 20.10.9

References (10)