CVE-2024-24557: moby — Fix

Description

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.

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CVSS v3.1 Score

6.9

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:L

Weakness Type (CWE)

CWE-345 CWE-345

CWE-346 CWE-346

Affected Products

Vendor	Product	Versions
mobyproject	moby	< 24.0.9
mobyproject	moby	25.0.0 — 25.0.2

References

Advisories & Patches

https://github.com/moby/moby/commit/3e230cfdcc989dc524882f6579f9e0dac77400ae https://github.com/moby/moby/security/advisories/GHSA-xw73-rw38-6vjc https://github.com/moby/moby/commit/3e230cfdcc989dc524882f6579f9e0dac77400ae https://github.com/moby/moby/security/advisories/GHSA-xw73-rw38-6vjc

Frequently Asked Questions

What is CVE-2024-24557? +

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. It has a CVSS v3.1 base score of 6.9 (MEDIUM).

How severe is CVE-2024-24557? +

CVE-2024-24557 has a CVSS v3.1 score of 6.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-24557? +

CVE-2024-24557 affects products from mobyproject, specifically: moby. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-24557? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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