CVE-2022-23524: Helm vulnerable to Denial of service through string value parsing

Vulnerability summary

CVE-2022-23524 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in helm. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.9% of scored vulnerabilities.

Timeline

1. 15-12-2022
   PublishedVulnerability first disclosed.
2. 18-04-2025
   Last modifiedVulnerability information updated.

Description

Helm is a tool for managing Charts, pre-configured Kubernetes resources. Versions prior to 3.10.3 are subject to Uncontrolled Resource Consumption, resulting in Denial of Service. Input to functions in the _strvals_ package can cause a stack overflow. In Go, a stack overflow cannot be recovered from. Applications that use functions from the _strvals_ package in the Helm SDK can have a Denial of Service attack when they use this package and it panics. This issue has been patched in 3.10.3. SDK users can validate strings supplied by users won't create large arrays causing significant memory usage before passing them to the _strvals_ functions.

• CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
• CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.