GHSA-qq97-vm5h-rrhg OCI Manifest Type Confusion Issue

• Go github.com/docker/distribution: < 2.8.0 → fixed in 2.8.0

Impact Systems that rely on digest equivalence for image attestations may be vulnerable to type confusion. Patches Upgrade to at least `v2.8.0-beta.1` if you are running `v2.x` release. If you use the code from the `main` branch, update at least to the commit after b59a6f827947f9e0e67df0cfb571046de4733586. Workarounds There is no way to work around this issue without patching. References Due to an oversight in the OCI Image Specification that removed the embedded `mediaType` field from manifests, a maliciously crafted OCI Container Image can cause registry clients to parse the same image in two different ways without modifying the image’s digest by modifying the `Content-Type` header returned by a registry. This can invalidate a common pattern of relying on container image digests for equivalence. For more information If you have any questions or comments about this advisory: • Open an issue in distribution • Open an issue in distribution-spec • Email us at [email protected]