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  5. GMS-2021-101

GMS-2021-101: Clarify `mediaType` handling

November 18, 2021 (updated November 24, 2021)

Impact

In the OCI Image Specification version 1.0.1 and prior, manifest and index documents are not self-describing and documents with a single digest could be interpreted as either a manifest or an index.

Patches

The Image Specification will be updated to recommend that both manifest and index documents contain a mediaType field to identify the type of document.

References

  • github.com/advisories/GHSA-77vh-xpmg-72qh
  • github.com/opencontainers/distribution-spec/security/advisories/GHSA-mc8v-mgrf-8f4m
  • github.com/opencontainers/image-spec/commit/693428a734f5bab1a84bd2f990d92ef1111cd60c
  • github.com/opencontainers/image-spec/releases/tag/v1.0.2
  • github.com/opencontainers/image-spec/security/advisories/GHSA-77vh-xpmg-72qh

Code Behaviors & Features

Detect and mitigate GMS-2021-101 with GitLab Dependency Scanning

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Affected versions

All versions before 1.0.2

Fixed versions

  • 1.0.2

Solution

Upgrade to version 1.0.2 or above.

Source file

go/github.com/opencontainers/image-spec/GMS-2021-101.yml

Spotted a mistake? Edit the file on GitLab.

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