Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| cilium | cilium | >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | hubble-ui | 0.13.0-r3 | — |
| Wolfi rolling | hubble-ui-backend | 0.13.3-r3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/cilium/cilium | >= 1.14.0, < 1.14.8 | 1.14.8 | GHSA-v6q2-4qr3-5cw6 |
| Go | github.com/cilium/cilium | >= 1.15.0, < 1.15.2 | 1.15.2 | GHSA-v6q2-4qr3-5cw6 |
| Go | github.com/cilium/cilium | >= 1.14.0, < 1.14.8 · >= 1.15.0, < 1.15.2 | 1.14.8, 1.15.2 | GO-2024-2657 |