BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. In addition to running containers as build steps, BuildKit also provides APIs for running interactive containers based on built images. It was possible to use these APIs to ask BuildKit to run a container with elevated privileges. Normally, running such containers is only allowed if special `security.insecure` entitlement is enabled both by buildkitd configuration and allowed by the user initializing the build request. The issue has been fixed in v0.12.5.
Exploitation Status
At Aqua Security, we can reassure our customers and the wider community about the robustness of our security posture. A thorough review has confirmed that Aqua images are not susceptible to the vulnerabilities outlined. Although our images do incorporate runc libraries, these are categorized as indirect dependencies and thus do not present a vulnerability vector in our environment.
