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Moderate severityNVD Advisory· Published Aug 16, 2024· Updated Aug 16, 2024

Cilium vulnerable to information leakage via incorrect ReferenceGrant update logic in Gateway API

CVE-2024-42486

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/cilium/ciliumGo
>= 1.16.0, < 1.16.11.16.1
github.com/cilium/ciliumGo
>= 1.15.0, < 1.15.81.15.8

Affected products

67

Patches

Vulnerability mechanics

References

7

News mentions

0

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