Описание
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.
A vulnerability was found in github.com/moby/moby. The classic builder cache system in moby is vulnerable to cache poisoning if the image is built using a 'FROM scratch' in Dockerfile. This flaw allows an attacker who has knowledge of the Dockerfile to create a malicious cache that would be pulled and considered a valid cache candidate for some build steps.
This only affects one if using DOCKER_BUILDKIT=0 or using the /build API endpoint.
Отчет
Red Hat rates this as a Moderate impact since attack complexity is quite high. There are multiple conditions which are required: dockerfile is configured to use a non-default setting, attacker must be aware of this information, and they must have the ability to craft a malicious cache.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| OpenShift Service Mesh 2 | openshift-service-mesh/istio-cni-rhel8 | Not affected | ||
| OpenShift Service Mesh 2 | openshift-service-mesh/istio-rhel8-operator | Not affected | ||
| Red Hat Ceph Storage 6 | rhceph/rhceph-6-dashboard-rhel9 | Affected | ||
| Red Hat OpenShift Container Platform 4 | openshift4/ose-agent-installer-api-server-rhel9 | Not affected | ||
| Red Hat OpenShift Container Platform 4 | openshift4/ose-console | Not affected | ||
| Red Hat Ceph Storage 7.1 | grafana-container-11.5.2 | Fixed | RHSA-2025:9340 | 23.06.2025 |
| Red Hat Ceph Storage 7.1 | promtail-container-v3.0.0 | Fixed | RHSA-2025:9340 | 23.06.2025 |
| Red Hat Ceph Storage 7.1 | rhceph-container-7 | Fixed | RHSA-2025:9340 | 23.06.2025 |
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Дополнительная информация
Статус:
EPSS
6.9 Medium
CVSS3
Связанные уязвимости
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.
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.
Moby is an open-source project created by Docker to enable software co ...
EPSS
6.9 Medium
CVSS3