CVE-2023-26054: BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. In affected versions when the user sends a build request that contains a Git URL that contains credentials and the build creates a provenance attestation describing that build, these credentials could be visible from the provenance attestation. Git URL can be passed in two ways: 1) Invoking build directly from a URL with credentials. 2) If the client sends additional version control system (VCS) info hint parameters on builds from a local source. Usually, that would mean reading the origin URL from `.git/config` file. When a build is performed under specific conditions where credentials were passed to BuildKit they may be visible to everyone who has access to provenance attestation. Provenance attestations and VCS info hints were added in version v0.11.0. Previous versions are not vulnerable. In v0.10, when building directly from Git URL, the same URL could be visible in `BuildInfo` structure that is a predecessor of Provenance attestations. Previous versions are not vulnerable. This bug has been fixed in v0.11.4. Users are advised to upgrade. Users unable to upgrade may disable VCS info hints by setting `BUILDX_GIT_INFO=0`. `buildctl` does not set VCS hints based on `.git` directory, and values would need to be passed manually with `--opt`. Fixed in buildkit-0.11.4. moby (docker) bumped its bundled buildkit in 24.0 betas/RCs: https://github.com/moby/moby/commit/324290a5eb1374d6a867b4a392cf54431cf2a3ee
> Fixed in buildkit-0.11.4. moby (docker) bumped its bundled buildkit in 24.0 betas/RCs: And thus I suppose 24.0.4 is the first fixed version for us.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/data/glsa.git/commit/?id=72515324253c8d95723f4e5308eb0fe41ebed5cd commit 72515324253c8d95723f4e5308eb0fe41ebed5cd Author: GLSAMaker <glsamaker@gentoo.org> AuthorDate: 2024-09-28 07:32:55 +0000 Commit: Hans de Graaff <graaff@gentoo.org> CommitDate: 2024-09-28 07:33:05 +0000 [ GLSA 202409-29 ] Docker: Multiple Vulnerabilities Bug: https://bugs.gentoo.org/816273 Bug: https://bugs.gentoo.org/869407 Bug: https://bugs.gentoo.org/877653 Bug: https://bugs.gentoo.org/886509 Bug: https://bugs.gentoo.org/903804 Bug: https://bugs.gentoo.org/905336 Bug: https://bugs.gentoo.org/925022 Signed-off-by: GLSAMaker <glsamaker@gentoo.org> Signed-off-by: Hans de Graaff <graaff@gentoo.org> glsa-202409-29.xml | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+)
