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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% (52nd percentile)

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  • Snyk ID SNYK-ORACLE7-DOCKERCLI-2580343
  • published 10 Apr 2022
  • disclosed 19 Jul 2021
Report a new vulnerability Found a mistake?

Introduced: 19 Jul 2021

CVE-2021-32760 Open this link in a new tab
CWE-732 Open this link 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
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NVD

6.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    Low
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SUSE

3 low
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Red Hat

5.5 medium