Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled.
This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default.
The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.
References
| Link | Resource |
|---|---|
| https://github.com/cilium/cilium/releases/tag/v1.11.15 | Third Party Advisory |
| https://github.com/cilium/cilium/releases/tag/v1.12.8 | Third Party Advisory |
| https://github.com/cilium/cilium/releases/tag/v1.13.1 | Third Party Advisory |
| https://github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hc | Third Party Advisory |
Configurations
Configuration 1 (hide)
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History
07 Nov 2023, 04:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled. This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default. The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing. |
24 Mar 2023, 16:33
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.3 |
| First Time |
Cilium
Cilium cilium |
|
| CWE | CWE-863 | |
| References | (MISC) https://github.com/cilium/cilium/releases/tag/v1.13.1 - Third Party Advisory | |
| References | (MISC) https://github.com/cilium/cilium/releases/tag/v1.12.8 - Third Party Advisory | |
| References | (MISC) https://github.com/cilium/cilium/releases/tag/v1.11.15 - Third Party Advisory | |
| References | (MISC) https://github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hc - Third Party Advisory | |
| CPE | cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* |
17 Mar 2023, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2023-03-17 20:15
Updated : 2023-12-10 15:01
NVD link : CVE-2023-27594
Mitre link : CVE-2023-27594
CVE.ORG link : CVE-2023-27594
JSON object : View
Products Affected
cilium
- cilium