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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-10-13T00:00:00

Updated: 2024-08-03T12:00:43.519Z

Reserved: 2022-09-02T00:00:00

Link: CVE-2022-39278

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-10-13T23:15:11.033

Modified: 2024-11-21T07:17:56.580

Link: CVE-2022-39278

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-10-12T00:00:00Z

Links: CVE-2022-39278 - Bugzilla