RHSA-2023:7610HighCVSS 7.5

Red Hat Security Advisory: OpenShift Container Platform 4.12.45 packages and security update

Published
December 6, 2023
Last Modified
September 19, 2026

🔗 CVE IDs covered (3)

CVE-2023-39325 →CVE-2023-44487 →CVE-2023-46136 →

📋 Description

CVE-2023-39325 — golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-44487) CVE-2023-44487 — HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) CVE-2023-46136 — python-werkzeug: high resource consumption leading to denial of service

🎯 Affected products171

  • Ironic content for Red Hat OpenShift Container Platform 4.12
  • Red Hat OpenShift Container Platform 4.12
  • bpftool-0:4.18.0-372.82.1.el8_6.aarch64 as a component of Red Hat OpenShift Container Platform 4.12
  • bpftool-0:4.18.0-372.82.1.el8_6.ppc64le as a component of Red Hat OpenShift Container Platform 4.12
  • bpftool-0:4.18.0-372.82.1.el8_6.s390x as a component of Red Hat OpenShift Container Platform 4.12
  • bpftool-0:4.18.0-372.82.1.el8_6.x86_64 as a component of Red Hat OpenShift Container Platform 4.12
  • bpftool-debuginfo-0:4.18.0-372.82.1.el8_6.aarch64 as a component of Red Hat OpenShift Container Platform 4.12
  • bpftool-debuginfo-0:4.18.0-372.82.1.el8_6.ppc64le as a component of Red Hat OpenShift Container Platform 4.12
  • bpftool-debuginfo-0:4.18.0-372.82.1.el8_6.s390x as a component of Red Hat OpenShift Container Platform 4.12
  • bpftool-debuginfo-0:4.18.0-372.82.1.el8_6.x86_64 as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-0:1.25.5-2.rhaos4.12.git0217273.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-0:1.25.5-2.rhaos4.12.git0217273.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-0:1.25.5-2.rhaos4.12.git0217273.el8.s390x as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-0:1.25.5-2.rhaos4.12.git0217273.el8.src as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-0:1.25.5-2.rhaos4.12.git0217273.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-debuginfo-0:1.25.5-2.rhaos4.12.git0217273.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-debuginfo-0:1.25.5-2.rhaos4.12.git0217273.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-debuginfo-0:1.25.5-2.rhaos4.12.git0217273.el8.s390x as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-debuginfo-0:1.25.5-2.rhaos4.12.git0217273.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-debugsource-0:1.25.5-2.rhaos4.12.git0217273.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-debugsource-0:1.25.5-2.rhaos4.12.git0217273.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-debugsource-0:1.25.5-2.rhaos4.12.git0217273.el8.s390x as a component of Red Hat OpenShift Container Platform 4.12
  • cri-o-debugsource-0:1.25.5-2.rhaos4.12.git0217273.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.12
  • kernel-0:4.18.0-372.82.1.el8_6.aarch64 as a component of Red Hat OpenShift Container Platform 4.12
  • kernel-0:4.18.0-372.82.1.el8_6.ppc64le as a component of Red Hat OpenShift Container Platform 4.12
  • kernel-0:4.18.0-372.82.1.el8_6.s390x as a component of Red Hat OpenShift Container Platform 4.12
  • kernel-0:4.18.0-372.82.1.el8_6.src as a component of Red Hat OpenShift Container Platform 4.12
  • kernel-0:4.18.0-372.82.1.el8_6.x86_64 as a component of Red Hat OpenShift Container Platform 4.12
  • kernel-core-0:4.18.0-372.82.1.el8_6.aarch64 as a component of Red Hat OpenShift Container Platform 4.12
  • kernel-core-0:4.18.0-372.82.1.el8_6.ppc64le as a component of Red Hat OpenShift Container Platform 4.12
  • +141 more not shown

✅ Remediation

For OpenShift Container Platform 4.12 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-12-release-notes.html Workaround: The default stream concurrency limit in golang is 250 streams (requests) per HTTP/2 connection. This value may be adjusted in the golang.org/x/net/http2 package using the Server.MaxConcurrentStreams setting and the ConfigureServer function which are available in golang.org/x/net/http2. Workaround: Users are strongly urged to update their software as soon as fixes are available. There are several mitigation approaches for this flaw. 1. If circumstances permit, users may disable http2 endpoints to circumvent the flaw altogether until a fix is available. 2. IP-based blocking or flood protection and rate control tools may be used at network endpoints to filter incoming traffic. 3. Several package specific mitigations are also available. a. nginx: https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/ b. netty: https://github.com/netty/netty/security/advisories/GHSA-xpw8-rcwv-8f8p c. haproxy: https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487 d. nghttp2: https://github.com/nghttp2/nghttp2/security/advisories/GHSA-vx74-f528-fxqg e. golang: The default stream concurrency limit in golang is 250 streams (requests) per HTTP/2 connection. This value may be adjusted in the golang.org/x/net/http2 package using the Server.MaxConcurrentStreams setting and the ConfigureServer function which are available in golang.org/x/net/http2.

🔗 References (7)