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CVE-2024-36621

19
FAUCET Score

CVE-2024-36621 is a race condition vulnerability in moby v25.0.5, specifically within the builder/builder-next/adapters/snapshot/layer.go component. This flaw allows for concurrent builds to trigger the EnsureLayer function, potentially leading to resource leaks and exhaustion. With a CVSS score of 6.5 (Medium), it can be exploited remotely with low attack complexity, resulting in high availability impact. Currently, there is no known active exploitation, public exploit code, or Metasploit/Nuclei modules, though it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
25.0.5CPE matchmatch criteria
cpe:2.3:a:mobyproject:moby:25.0.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 56th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/moby/mobyFixed in: 26.0.0
microsoftpatch availablevia msrc
Product: 17162-16823Fixed in: 24.0.9-11
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 24.0.9-13
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 24.0.9-13
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 25.0.3-9
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 25.0.3-9
microsoftpatch availablevia msrc
Product: 19798-17086Fixed in: 24.0.9-11
microsoftpatch availablevia msrc
Product: 19422-17086Fixed in: 24.0.9-11
microsoftpatch availablevia msrc
Product: 17552-17084Fixed in: 25.0.3-8
microsoftpatch availablevia msrc
Product: 19729-17084Fixed in: 25.0.3-8
microsoftpatch availablevia msrc
Product: cbl2 moby-engine 24.0.9-11 on CBL Mariner 2.0Fixed in: 24.0.9-11
microsoftpatch availablevia msrc
Product: cbl2 moby-engine 24.0.9-16 on CBL Mariner 2.0Fixed in: 24.0.9-11
microsoftpatch availablevia msrc
Product: azl3 moby-engine 25.0.3-8 on Azure Linux 3.0Fixed in: 25.0.3-8
microsoftpatch availablevia msrc
Product: azl3 moby-engine 25.0.3-13 on Azure Linux 3.0Fixed in: 25.0.3-8

Vendor Advisories (4)

microsoft2024-Dec/CVE-2024-36621

CVE-2024-36621

Dec 10, 2024
goGHSA-2mj3-vfvx-fc43high

Moby Race Condition vulnerability

Nov 29, 2024
redhatCVE-2024-36621Moderate

moby: Race Condition in Moby's Snapshot Layer Handling

Nov 29, 2024
microsoft2024-Nov/CVE-2024-36621Moderate

moby v25.0.5 is affected by a Race Condition in builder/builder-next/adapters/snapshot/layer.go. The vulnerability could be used to trigger concurrent builds that call the EnsureLayer function resulting in resource leaks/exhaustion.

Nov 12, 2024

References

gist.github.com / 1047524396/5d44459edab5fafcdf86b43909b81135
Third Party Advisory
github.com / moby/moby/blob/v25.0.5/builder/builder-next/adapters/snapshot/layer.go
Product
github.com / moby/moby/commit/37545cc644344dcb576cba67eb7b6f51a463d31e
Patch