Bug 2354605 (CVE-2025-30163)

Summary: CVE-2025-30163 cilium: Node based network policies may incorrectly allow workload traffic
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: adudiak, alcohan, fdeutsch, gparvin, jwendell, kshier, mwringe, njean, omaciel, oramraz, owatkins, pahickey, rcernich, rhaigner, smullick, stcannon, stirabos, thason, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Cilium package. The Node based network policies (`fromNodes` and `toNodes`) will incorrectly permit traffic to/from non-node endpoints that share the labels specified in `fromNodes` and `toNodes` sections of network policies.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2354729, 2354731, 2354732, 2354735, 2354736, 2354737, 2354738, 2354739, 2354712, 2354713, 2354714, 2354715, 2354716, 2354717, 2354718, 2354719, 2354720, 2354721, 2354722, 2354723, 2354724, 2354725, 2354726, 2354727, 2354728, 2354730, 2354733, 2354734, 2354740, 2354741, 2354742, 2354743    
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Description OSIDB Bzimport 2025-03-24 19:01:14 UTC
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies (`fromNodes` and `toNodes`) will incorrectly permit traffic to/from non-node endpoints that share the labels specified in `fromNodes` and `toNodes` sections of network policies. Node based network policy is disabled by default in Cilium. This issue affects: Cilium v1.16 between v1.16.0 and v1.16.7 inclusive and v1.17 between v1.17.0 and v1.17.1 inclusive. This issue is fixed in Cilium v1.16.8 and v1.17.2. Users can work around this issue by ensuring that the labels used in `fromNodes` and `toNodes` fields are used exclusively by nodes and not by other endpoints.