GHSA-4v98-7qmw-rqr8
BuildKit vulnerable to possible host system access from mount stub cleaner
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/moby/buildkit | < 0.12.5 | 0.12.5 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
A malicious BuildKit frontend or Dockerfile using `RUN --mount` could trick the feature that removes empty files created for the mountpoints into removing a file outside the container, from the host system.
### Patches
The issue has been fixed in v0.12.5
### Workarounds
Avoid using BuildKit frontend from an untrusted source or building an untrusted Dockerfile containing `RUN --mount` feature.
### References
References
External links from the advisory. They lead to third-party sites.