knative.dev/func is is a client library and CLI enabling the development and deployment of Kubernetes functions. Developers using a malicious or compromised third-party buildpack could expose their registry credentials or local docker socket to a malicious `lifecycle` container. This issues has been patched in PR #1442, and is part of release 1.8.1. This issue only affects users who are using function buildpacks from third-parties; pinning the builder image to a specific content-hash with a valid `lifecycle` image will also mitigate the attack.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
| Link | Tags |
|---|---|
| https://github.com/knative/func/security/advisories/GHSA-5336-2g3f-9g3m | exploit third party advisory patch |
| https://github.com/knative/func/pull/1442 | third party advisory patch |
| https://github.com/knative/func/blob/5ca77d38744d3481cc0b795f607c5859b19588fc/buildpacks/builder.go#L37-L41 | third party advisory |
| https://github.com/knative/func/releases/tag/knative-v1.8.1 | third party advisory release notes |