Vulnerability Description
Istio is an open platform-independent service mesh that provides traffic management, policy enforcement, and telemetry collection. Prior to versions 1.15.2, 1.14.5, and 1.13.9, the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted or oversized message which results in the control plane crashing when the Kubernetes validating or mutating webhook service is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially external istiod topologies, this port is exposed over the public internet. Versions 1.15.2, 1.14.5, and 1.13.9 contain patches for this issue. There are no effective workarounds, beyond upgrading. This bug is due to an error in `regexp.Compile` in Go.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Istio | Istio | < 1.13.9 |
Related Weaknesses (CWE)
References
- https://github.com/istio/istio/security/advisories/GHSA-86vr-4wcv-mm9wThird Party Advisory
- https://istio.io/latest/news/releases/1.13.x/announcing-1.13.9/Third Party Advisory
- https://istio.io/latest/news/releases/1.15.x/announcing-1.15.2/Third Party Advisory
- https://istio.io/news/releases/1.14.x/announcing-1.14.5/Third Party Advisory
- https://github.com/istio/istio/security/advisories/GHSA-86vr-4wcv-mm9wThird Party Advisory
- https://istio.io/latest/news/releases/1.13.x/announcing-1.13.9/Third Party Advisory
- https://istio.io/latest/news/releases/1.15.x/announcing-1.15.2/Third Party Advisory
- https://istio.io/news/releases/1.14.x/announcing-1.14.5/Third Party Advisory
FAQ
What is CVE-2022-39278?
CVE-2022-39278 is a vulnerability with a CVSS score of 7.5 (HIGH). Istio is an open platform-independent service mesh that provides traffic management, policy enforcement, and telemetry collection. Prior to versions 1.15.2, 1.14.5, and 1.13.9, the Istio control plane...
How severe is CVE-2022-39278?
CVE-2022-39278 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-39278?
Check the references section above for vendor advisories and patch information. Affected products include: Istio Istio.