CVE-2024-24557

Published: 1 February 2024

Moby is an open-source project created by Docker to enable software containerization. The classic builder cache system is prone to cache poisoning if the image is built FROM scratch. Also, changes to some instructions (most important being HEALTHCHECK and ONBUILD) would not cause a cache miss. An attacker with the knowledge of the Dockerfile someone is using could poison their cache by making them pull a specially crafted image that would be considered as a valid cache candidate for some build steps. 23.0+ users are only affected if they explicitly opted out of Buildkit (DOCKER_BUILDKIT=0 environment variable) or are using the /build API endpoint. All users on versions older than 23.0 could be impacted. Image build API endpoint (/build) and ImageBuild function from github.com/docker/docker/client is also affected as it the uses classic builder by default. Patches are included in 24.0.9 and 25.0.2 releases.

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.

Status

Severity score breakdown

References

• https://github.com/moby/moby/security/advisories/GHSA-xw73-rw38-6vjc
• https://github.com/moby/moby/commit/3e230cfdcc989dc524882f6579f9e0dac77400ae
• https://www.cve.org/CVERecord?id=CVE-2024-24557
• NVD
• Launchpad
• Debian