GHSA-qq97-vm5h-rrhg OCI Manifest Type Confusion Issue
Attackers can bypass image attestation checks by exploiting OCI manifest type confusion via Content-Type headers, affecting registry clients relying on digest equivalence.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-qq97-vm5h-rrhg?
GHSA-qq97-vm5h-rrhg is a vulnerability in github.com/docker/distribution, published on 8 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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]
Which versions are affected by GHSA-qq97-vm5h-rrhg?
3 open source packages ship an affected version, including github.com/docker/distribution.
| Package | Affected | Fixed in |
|---|---|---|
github.com/docker/distribution Go | All versions | 2.8.0 |
github.com/docker/distribution Go | All versions | 2.8.0 |
github.com/docker/distribution Go | All versions | 2.8.0+incompatible |
How do I fix GHSA-qq97-vm5h-rrhg?
Upgrade github.com/docker/distribution to a fixed version for your release line: 2.8.0 or 2.8.0+incompatible.
Is GHSA-qq97-vm5h-rrhg being exploited?
There is no known exploitation of GHSA-qq97-vm5h-rrhg in the wild and no public exploit code.
Sources
Also known as GO-2022-0379.