Incorrect Permission Assignment for Critical Resource Affecting docker-cli package, versions <0:19.03.11.ol-13.el7


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-ORACLE7-DOCKERCLI-2580343
  • published10 Apr 2022
  • disclosed19 Jul 2021

Introduced: 19 Jul 2021

CVE-2021-32760  (opens in a new tab)
CWE-732  (opens in a new tab)

How to fix?

Upgrade Oracle:7 docker-cli to version 0:19.03.11.ol-13.el7 or higher.
This issue was patched in ELSA-2021-9373.

NVD Description

Note: Versions mentioned in the description apply only to the upstream docker-cli package and not the docker-cli package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

containerd is a container runtime. A bug was found in containerd versions prior to 1.4.8 and 1.5.4 where pulling and extracting a specially-crafted container image can result in Unix file permission changes for existing files in the host’s filesystem. Changes to file permissions can deny access to the expected owner of the file, widen access to others, or set extended bits like setuid, setgid, and sticky. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in containerd 1.5.4 and 1.4.8. As a workaround, ensure that users only pull images from trusted sources. Linux security modules (LSMs) like SELinux and AppArmor can limit the files potentially affected by this bug through policies and profiles that prevent containerd from interacting with specific files.

CVSS Scores

version 3.1