Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In versions on the 1.15.x branch prior to 1.15.8 and the 1.16.x branch prior to 1.16.1, ReferenceGrant changes are not correctly propagated in Cilium's GatewayAPI controller, which could lead to Gateway resources being able to access secrets for longer than intended, or to Routes having the ability to forward traffic to backends in other namespaces for longer than intended. This issue has been patched in Cilium v1.15.8 and v1.16.1. As a workaround, any modification of a related Gateway/HTTPRoute/GRPCRoute/TCPRoute CRD (for example, adding any label to any of these resources) will trigger a reconciliation of ReferenceGrants on an affected cluster.
History

Fri, 16 Aug 2024 23:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 16 Aug 2024 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 Aug 2024 14:45:00 +0000

Type Values Removed Values Added
Description Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In versions on the 1.15.x branch prior to 1.15.8 and the 1.16.x branch prior to 1.16.1, ReferenceGrant changes are not correctly propagated in Cilium's GatewayAPI controller, which could lead to Gateway resources being able to access secrets for longer than intended, or to Routes having the ability to forward traffic to backends in other namespaces for longer than intended. This issue has been patched in Cilium v1.15.8 and v1.16.1. As a workaround, any modification of a related Gateway/HTTPRoute/GRPCRoute/TCPRoute CRD (for example, adding any label to any of these resources) will trigger a reconciliation of ReferenceGrants on an affected cluster.
Title Cilium vulnerable to information leakage via incorrect ReferenceGrant update logic in Gateway API
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-08-16T14:34:41.560Z

Updated: 2024-08-16T14:54:16.632Z

Reserved: 2024-08-02T14:13:04.617Z

Link: CVE-2024-42486

cve-icon Vulnrichment

Updated: 2024-08-16T14:54:12.904Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-08-16T15:15:28.777

Modified: 2024-08-19T13:00:23.117

Link: CVE-2024-42486

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-08-16T00:00:00Z

Links: CVE-2024-42486 - Bugzilla