CVE-2024-23651

Published: 31 January 2024

BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Two malicious build steps running in parallel sharing the same cache mounts with subpaths could cause a race condition that can lead to files from the host system being accessible to the build container. The issue has been fixed in v0.12.5. Workarounds include, avoiding using BuildKit frontend from an untrusted source or building an untrusted Dockerfile containing cache mounts with --mount=type=cache,source=... options.

Notes

Traditionally the docker.io source package contained both the
library and docker application. However, in releases that
contain the
docker.io-app source package, the docker.io source package
contains only
the library whilst the docker application itself is contained
in the
docker.io-app package.

docker packages contain an embedded copy of github:moby/buildkit

Status

Severity score breakdown

References

• https://github.com/moby/buildkit/security/advisories/GHSA-m3r6-h7wv-7xxv
• https://github.com/moby/buildkit/pull/4604
• https://github.com/moby/buildkit/releases/tag/v0.12.5
• https://www.openwall.com/lists/oss-security/2019/05/28/1
• https://www.cve.org/CVERecord?id=CVE-2024-23651
• NVD
• Launchpad
• Debian