CVE-2024-42486

MEDIUM

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

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2024-42486 has a selected CVSS score of 5.4 (medium).

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 16, 2024 · Source: CVE List

Affected products and versions

2
ProductSourceVersion range

cilium

Browse cilium / cilium
CVE List= 1.16.0affected
>= 1.15.0, < 1.15.8affected

github.com/cilium/cilium

Browse Go / github.com/cilium/cilium
GitHub Advisory1.16.0affected
1.16.0 to < 1.16.1 · Fixed in 1.16.1affected
1.15.0 to < 1.15.8 · Fixed in 1.15.8affected

References

7