CVE-2021-32760 (Medium) detected in github.com/containerd/cri-v1.11.1-0.20200601160732-d7ce093d63d0, github.com/containerd/containerd-6312b52de5ad8fa5637e6d1a24954b68448303a9

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CVE-2021-32760 - Medium Severity Vulnerability

Vulnerable Libraries - github.com/containerd/cri-v1.11.1-0.20200601160732-d7ce093d63d0, github.com/containerd/containerd-6312b52de5ad8fa5637e6d1a24954b68448303a9

github.com/containerd/cri-v1.11.1-0.20200601160732-d7ce093d63d0

Moved to https://github.com/containerd/containerd/tree/master/pkg/cri . If you wish to submit issues/PRs, please submit to https://github.com/containerd/containerd

Library home page: https://proxy.golang.org/github.com/containerd/cri/@v/v1.11.1-0.20200601160732-d7ce093d63d0.zip

Dependency Hierarchy:

• ❌ github.com/containerd/cri-v1.11.1-0.20200601160732-d7ce093d63d0 (Vulnerable Library)

github.com/containerd/containerd-6312b52de5ad8fa5637e6d1a24954b68448303a9

An open and reliable container runtime

Library home page: https://proxy.golang.org/github.com/containerd/containerd/@v/v1.4.0-beta.0.0.20200515000003-6312b52de5ad.zip

Dependency Hierarchy:

• ❌ github.com/containerd/containerd-6312b52de5ad8fa5637e6d1a24954b68448303a9 (Vulnerable Library)

Found in base branch: master

Vulnerability Details

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.

Publish Date: 2021-07-19

URL: CVE-2021-32760

CVSS 3 Score Details (6.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-c72p-9xmj-rx3w

Release Date: 2021-07-19

Fix Resolution: v1.4.8 ,v1.5.4