RHSA-2023:6239HighCVSS 7.5

Red Hat Security Advisory: Kiali (Kiali 1.65.10) security update

Published
November 1, 2023
Last Modified
August 18, 2026

🔗 CVE IDs covered (1)

CVE-2023-44487 →

📋 Description

CVE-2023-44487 — HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)

🎯 Affected products9

  • RHOSSM 2.4 for RHEL 8
  • openshift-service-mesh/kiali-rhel8-operator@sha256:29bbacd9971b9ccb2b64b1485ebcafeea7294b3518cb4c467c37452503e12a0d_amd64 as a component of RHOSSM 2.4 for RHEL 8
  • openshift-service-mesh/kiali-rhel8-operator@sha256:2b06fd2dd516b04a5ef54744114db0e2dbd48741ae8a41eb647334bdd6eb6404_arm64 as a component of RHOSSM 2.4 for RHEL 8
  • openshift-service-mesh/kiali-rhel8-operator@sha256:31e0a2e76216573ed7f27d218152911d3765a38c71e4834be276fe4d1944fe04_s390x as a component of RHOSSM 2.4 for RHEL 8
  • openshift-service-mesh/kiali-rhel8-operator@sha256:6a073f75a99df21d3185900e1c9e44ea2a6f9995fc3bcc4c826c20884ba92748_ppc64le as a component of RHOSSM 2.4 for RHEL 8
  • openshift-service-mesh/kiali-rhel8@sha256:14284b2fcd21b2aa7eab7269b1ae22d6efd9705267e455035eb129e66ea21a5c_arm64 as a component of RHOSSM 2.4 for RHEL 8
  • openshift-service-mesh/kiali-rhel8@sha256:d9c8aa68fdbd3f1e163db6cacc9282fc7a91474cf855cc44679177bba68365f4_s390x as a component of RHOSSM 2.4 for RHEL 8
  • openshift-service-mesh/kiali-rhel8@sha256:e533eeb5e448687b73754f82502a735a08f46b7260c62170ee88ea35907261fa_amd64 as a component of RHOSSM 2.4 for RHEL 8
  • openshift-service-mesh/kiali-rhel8@sha256:e9478516ca737881e7616c1e009c1ffee5ef4d24f31b656a262510118d45633e_ppc64le as a component of RHOSSM 2.4 for RHEL 8

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 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 (5)