CVE-2022-39278

 

Published at: - 14-10-2022 01:15

Last modified: - 19-10-2022 04:24

Total changes: - 3

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://istio.io/latest/news/releases/1.13.x/announcing-1.13.9/
• https://github.com/istio/istio/security/advisories/GHSA-86vr-4wcv-mm9w
• https://istio.io/latest/news/releases/1.15.x/announcing-1.15.2/
• https://istio.io/news/releases/1.14.x/announcing-1.14.5/

 

Keywords

NVD

 

CVE-2022-39278

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures