containerd 2.1.0 toctou

Summaryinfo

A vulnerability marked as very critical has been reported in containerd 2.1.0. Affected is an unknown function. The manipulation leads to toctou. This vulnerability is listed as CVE-2025-47290. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in containerd 2.1.0 and classified as very critical. This issue affects an unknown code. The manipulation with an unknown input leads to a toctou vulnerability. Using CWE to declare the problem leads to CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

containerd is a container runtime. A time-of-check to time-of-use (TOCTOU) vulnerability was found in containerd v2.1.0. While unpacking an image during an image pull, specially crafted container images could arbitrarily modify the host file system. The only affected version of containerd is 2.1.0. Other versions of containerd are not affected. This bug has been fixed in containerd 2.1.1. Users should update to this version to resolve the issue. As a workaround, ensure that only trusted images are used and that only trusted users have permissions to import images.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-47290 since 05/05/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/18/2025).

The vulnerability scanner Nessus provides a plugin with the ID 242250 (Fedora 43 : containerd (2025-bacdac27c8)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.1.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch cada13298fba85493badb6fecb6ccf80e49673cc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (242250) and EUVD (EUVD-2025-15953). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Virtualization Software

Name

• containerd

Version

• 2.1.0

License

• open-source

Website

• Product: https://github.com/containerd/containerd/

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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