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Clarify `mediaType` handling

Low severity GitHub Reviewed Published Nov 17, 2021 in opencontainers/image-spec • Updated Jan 9, 2023

Package

gomod github.com/opencontainers/image-spec (Go)

Affected versions

< 1.0.2

Patched versions

1.0.2

Description

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.
Release v1.0.2 includes these updates.

Workarounds

Software attempting to deserialize an ambiguous document may reject the document if it contains both “manifests” and “layers” fields or “manifests” and “config” fields.

References

GHSA-mc8v-mgrf-8f4m

For more information

If you have any questions or comments about this advisory:

References

@vbatts vbatts published to opencontainers/image-spec Nov 17, 2021
Reviewed Nov 17, 2021
Published to the GitHub Advisory Database Nov 18, 2021
Last updated Jan 9, 2023

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N

Weaknesses

CVE ID

No known CVE

GHSA ID

GHSA-77vh-xpmg-72qh

Source code

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