BuildKit has a possible runtime DoS via unbounded group parsing

Impact

Maliciously crafted base image or build can cause a Denial of Service (DoS) condition. When creating a container from this image, memory exhaustion occurs, leading to an Out Of Memory (OOM) kill of the buildkitd process.

Patches

Issue is fixed in BuildKit v0.31.1+

Workarounds

Use trusted build sources.

References

This is BuildKit variant of containerd advisory GHSA-jpcc-p29g-p8mq

References

• GHSA-72x6-4j93-7w86

• moby/buildkit@408266e

• moby/buildkit@69a3924

• https://github.com/moby/buildkit/releases/tag/v0.31.1