Race Condition (Leaky Vessels) Affecting github.com/moby/buildkit/snapshot package, versions <0.12.5


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMMOBYBUILDKITSNAPSHOT-6209339
  • published31 Jan 2024
  • disclosed11 Dec 2023
  • creditRory McNamara (Snyk Security Research)

Introduced: 11 Dec 2023

CVE-2024-23651  (opens in a new tab)
CWE-367  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade github.com/moby/buildkit/snapshot to version 0.12.5 or higher.

Overview

Affected versions of this package are vulnerable to Race Condition (Leaky Vessels) in the subpath mounting when two malicious build steps are running in parallel and sharing the same cache mounts. This can lead to files from the host system being accessible to the build container.

Workaround

Avoid using BuildKit frontend from an untrusted source or building an untrusted Dockerfile containing cache mounts with --mount=type=cache,source=... options.

This vulnerability was discovered and responsibly disclosed as part of the Leaky Vessels project.

CVSS Scores

version 3.1