containerd up to 1.5.15/1.6.11 CRI resource consumption

Summaryinfo

A vulnerability was found in containerd up to 1.5.15/1.6.11. It has been declared as problematic. This affects an unknown function of the component CRI Handler. Such manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2022-23471. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in containerd up to 1.5.15/1.6.11 (Virtualization Software). Affected by this issue is some unknown processing of the component CRI Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

containerd is an open source container runtime. A bug was found in containerd's CRI implementation where a user can exhaust memory on the host. In the CRI stream server, a goroutine is launched to handle terminal resize events if a TTY is requested. If the user's process fails to launch due to, for example, a faulty command, the goroutine will be stuck waiting to send without a receiver, resulting in a memory leak. Kubernetes and crictl can both be configured to use containerd's CRI implementation and the stream server is used for handling container IO. This bug has been fixed in containerd 1.6.12 and 1.5.16. Users should update to these versions to resolve the issue. Users unable to upgrade should ensure that only trusted images and commands are used and that only trusted users have permissions to execute commands in running containers.

The weakness was disclosed 12/08/2022 as GHSA-2qjp-425j-52j9. The advisory is available at github.com. This vulnerability is handled as CVE-2022-23471 since 01/19/2022. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 1.5.16 or 1.6.12 eliminates this vulnerability. Applying the patch a05d175400b1145e5e6a735a6710579d181e7fb0 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.

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Productinfo

Type

• Virtualization Software

Name

• containerd

Version

• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3
• 1.5.4
• 1.5.5
• 1.5.6
• 1.5.7
• 1.5.8
• 1.5.9
• 1.5.10
• 1.5.11
• 1.5.12
• 1.5.13
• 1.5.14
• 1.5.15
• 1.6.0
• 1.6.1
• 1.6.2
• 1.6.3
• 1.6.4
• 1.6.5
• 1.6.6
• 1.6.7
• 1.6.8
• 1.6.9
• 1.6.10
• 1.6.11

License

• open-source

Website

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

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CPE 2.2info

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