Headline
GHSA-wr6v-9f75-vh2g: Buildkit's interactive containers API does not validate entitlements check
Impact
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.
Patches
The issue has been fixed in v0.12.5 .
Workarounds
Avoid using BuildKit frontends from untrusted sources. A frontend image is usually specified as the #syntax line on your Dockerfile, or with --frontend flag when using buildctl build command.
References
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2024-23653
Buildkit’s interactive containers API does not validate entitlements check
High severity GitHub Reviewed Published Jan 31, 2024 in moby/buildkit • Updated Jan 31, 2024
Package
gomod github.com/moby/buildkit (Go)
Affected versions
< 0.12.5
Impact
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.
Patches
The issue has been fixed in v0.12.5 .
Workarounds
Avoid using BuildKit frontends from untrusted sources. A frontend image is usually specified as the #syntax line on your Dockerfile, or with --frontend flag when using buildctl build command.
References****References
- GHSA-wr6v-9f75-vh2g
- moby/buildkit#4602
Published to the GitHub Advisory Database
Jan 31, 2024
Last updated
Jan 31, 2024
Related news
Gentoo Linux Security Advisory 202409-29 - Multiple vulnerabilities have been discovered in Docker, the worst of which could result in denial of service. Versions greater than or equal to 25.0.4 are affected.
Gentoo Linux Security Advisory 202407-25 - Multiple vulnerabilities have been discovered in Buildah, the worst of which could lead to privilege escalation. Versions greater than or equal to 1.35.3 are affected.
Gentoo Linux Security Advisory 202407-12 - Multiple vulnerabilities have been discovered in Podman, the worst of which could lead to privilege escalation. Versions greater than or equal to 4.9.4 are affected.
Multiple security vulnerabilities have been disclosed in the runC command line tool that could be exploited by threat actors to escape the bounds of the container and stage follow-on attacks. The vulnerabilities, tracked as CVE-2024-21626, CVE-2024-23651, CVE-2024-23652, and CVE-2024-23653, have been collectively dubbed Leaky Vessels by cybersecurity vendor Snyk. "These container