Bug 1202441 (CVE-2022-2837)

Summary:	VUL-0: CVE-2022-2837: coredns: DNS Redirection of Top-Level Domains
Product:	[openSUSE] openSUSE Distribution	Reporter:	Robert Frohl <rfrohl>
Component:	Security	Assignee:	Richard Brown <rbrown>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium
Version:	Leap 15.5
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/339934/
Whiteboard:
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Robert Frohl 2022-08-16 12:50:20 UTC

rh#2118543

It is possible for a malicious user to redirect traffic intended for external top-level domains (TLD) to a pod they control by creating
projects/namespaces that match the TLD.

References
- https://docs.openshift.com/container-platform/4.10/architecture/admission-plug-ins.html#admission-plug-ins-default_admission-plug-ins
- https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/#namespaces-and-dns
- https://cwe.mitre.org/data/definitions/923.html

References:
https://bugzilla.redhat.com/show_bug.cgi?id=2118543
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-2837