RHSA-2023:7344HighCVSS 7.5

Red Hat Security Advisory: openshift-gitops-kam security update

Published
November 20, 2023
Last Modified
September 18, 2026

🔗 CVE IDs covered (2)

CVE-2023-39325 →CVE-2023-44487 →

📋 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)

🎯 Affected products7

  • Red Hat OpenShift GitOps 1.9
  • openshift-gitops-kam-0:1.9.3-32.el8.aarch64 as a component of Red Hat OpenShift GitOps 1.9
  • openshift-gitops-kam-0:1.9.3-32.el8.ppc64le as a component of Red Hat OpenShift GitOps 1.9
  • openshift-gitops-kam-0:1.9.3-32.el8.s390x as a component of Red Hat OpenShift GitOps 1.9
  • openshift-gitops-kam-0:1.9.3-32.el8.src as a component of Red Hat OpenShift GitOps 1.9
  • openshift-gitops-kam-0:1.9.3-32.el8.x86_64 as a component of Red Hat OpenShift GitOps 1.9
  • openshift-gitops-kam-redistributable-0:1.9.3-32.el8.x86_64 as a component of Red Hat OpenShift GitOps 1.9

✅ Remediation

Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 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 (6)