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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

AuthorNote
alexmurray
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.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
docker.io
Launchpad, Ubuntu, Debian
bionic Needed

focal Needed

jammy Needed

mantic Needed

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Not vulnerable
(code not present)
docker.io-app
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Needed

jammy Needed

mantic Needed

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H