Vulnerable Library - github.com/containerd/containerd-v1.6.1

An open and reliable container runtime

Dependency Hierarchy:

• github.com/moby/moby-v20.10.17 (Root Library)
  • ❌ github.com/containerd/containerd-v1.6.1 (Vulnerable Library)

Found in HEAD commit: b3ac62d12e3d43994ff7ad836e34da801ed665fb

Found in base branch: master

Vulnerability Details

The imgcrypt library provides API exensions for containerd to support encrypted container images and implements the ctd-decoder command line tool for use by containerd to decrypt encrypted container images. The imgcrypt function CheckAuthorization is supposed to check whether the current used is authorized to access an encrypted image and prevent the user from running an image that another user previously decrypted on the same system. In versions prior to 1.1.4, a failure occurs when an image with a ManifestList is used and the architecture of the local host is not the first one in the ManifestList. Only the first architecture in the list was tested, which may not have its layers available locally since it could not be run on the host architecture. Therefore, the verdict on unavailable layers was that the image could be run anticipating that image run failure would occur later due to the layers not being available. However, this verdict to allow the image to run enabled other architectures in the ManifestList to run an image without providing keys if that image had previously been decrypted. A patch has been applied to imgcrypt 1.1.4. Workarounds may include usage of different namespaces for each remote user.

Publish Date: 2022-03-25

URL: CVE-2022-24778

CVSS 3 Score Details (7.5)

Base Score Metrics:

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

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24778

Release Date: 2022-03-25

Fix Resolution: v1.1.4