要点
- CVE-2024-23651 は github.com/moby/buildkit, buildkit (mobyproject) に影響する深刻度「高」 (CVSS 7.4) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.91%（全脆弱性の 60.0% より高い）。
- 対処：0.12.5 以降に更新してください。
概要
Impact
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.
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 cache mounts with --mount=type=cache,source=... options.
References
https://www.openwall.com/lists/oss-security/2019/05/28/1
NVD の説明
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.
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