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CVE-2022-23635

Status Candidate

Overview

Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, `istiod`, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing. This endpoint is served over TLS port 15012, 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 [multicluster](https://istio.io/latest/docs/setup/install/multicluster/primary-remote/) topologies, this port is exposed over the public internet. There are no effective workarounds, beyond upgrading. Limiting network access to Istiod to the minimal set of clients can help lessen the scope of the vulnerability to some extent.

Related Files

Red Hat Security Advisory 2022-1275-01: Posted Apr 8, 2022; Authored by Red Hat | Site access.redhat.com; Red Hat Security Advisory 2022-1275-01 - Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for installation into an on-premise OpenShift Container Platform installation. This advisory covers the RPM packages for the release. Issues addressed include denial of service, null pointer, and use-after-free vulnerabilities.; tags | advisory, denial of service, vulnerability; systems | linux, redhat; advisories | CVE-2021-43824, CVE-2021-43825, CVE-2021-43826, CVE-2022-21654, CVE-2022-21655, CVE-2022-23606, CVE-2022-23635, CVE-2022-24726; SHA-256 | 748dbb6e9cd1a9cb203193b2477b29545edda9e2c70331bda5771358e1f2c0c7; Download | Favorite | View

Red Hat Security Advisory 2022-1276-01: Posted Apr 8, 2022; Authored by Red Hat | Site access.redhat.com; Red Hat Security Advisory 2022-1276-01 - Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for installation into an on-premise OpenShift Container Platform installation. This advisory covers the RPM packages for the release. Issues addressed include denial of service, null pointer, and use-after-free vulnerabilities.; tags | advisory, denial of service, vulnerability; systems | linux, redhat; advisories | CVE-2020-28851, CVE-2020-28852, CVE-2021-29482, CVE-2021-29923, CVE-2021-3121, CVE-2021-36221, CVE-2021-3749, CVE-2021-43565, CVE-2021-43824, CVE-2021-43825, CVE-2021-43826, CVE-2022-21654, CVE-2022-21655, CVE-2022-23606, CVE-2022-23635, CVE-2022-24726; SHA-256 | 0984d80a4f25b366027838992af94f44d04533e709937f467a1968a6659de964; Download | Favorite | View

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CVE-2022-23635

Overview

Related Files

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April 2024

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