Vulnerability Description
Linkerd is an open source, ultralight, security-first service mesh for Kubernetes. In affected versions when the application being run by linkerd is susceptible to SSRF, an attacker could potentially trigger a denial-of-service (DoS) attack by making requests to localhost:4191/shutdown. Linkerd could introduce an optional environment variable to control a token that must be passed as a header. Linkerd should reject shutdown requests that do not include this header. This issue has been addressed in release version edge-24.6.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/linkerd/linkerd2-proxy/blob/46957de49f25fd4661af7b7c52659148f
- https://github.com/linkerd/linkerd2/commit/35fb2d6d11ef6520ae516dd717790529f8522
- https://github.com/linkerd/linkerd2/security/advisories/GHSA-6v94-gj6x-jqj7
- https://github.com/linkerd/linkerd2-proxy/blob/46957de49f25fd4661af7b7c52659148f
- https://github.com/linkerd/linkerd2/commit/35fb2d6d11ef6520ae516dd717790529f8522
- https://github.com/linkerd/linkerd2/security/advisories/GHSA-6v94-gj6x-jqj7
FAQ
What is CVE-2024-40632?
CVE-2024-40632 is a vulnerability with a CVSS score of 3.7 (LOW). Linkerd is an open source, ultralight, security-first service mesh for Kubernetes. In affected versions when the application being run by linkerd is susceptible to SSRF, an attacker could potentially ...
How severe is CVE-2024-40632?
CVE-2024-40632 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-40632?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.