RHSA-2023:5935HighCVSS 7.5

Red Hat Security Advisory: Red Hat OpenStack Platform 16.2.5 security update

Published
October 19, 2023
Last Modified
August 24, 2026

🔗 CVE IDs covered (7)

CVE-2023-24532 →CVE-2023-29406 →CVE-2023-29409 →CVE-2023-39325 →CVE-2023-44487 →CVE-2022-41724 →CVE-2022-41725 →

📋 Description

CVE-2022-41724 — golang: crypto/tls: large handshake records may cause panics CVE-2022-41725 — golang: net/http, mime/multipart: denial of service from excessive resource consumption CVE-2023-24532 — golang: crypto/internal/nistec: specific unreduced P-256 scalars produce incorrect results CVE-2023-29406 — golang: net/http: insufficient sanitization of Host header CVE-2023-29409 — golang: crypto/tls: slow verification of certificate chains containing large RSA keys 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 products5

  • Red Hat OpenStack Platform 16.2
  • rhosp-rhel8/osp-director-agent@sha256:669c11288ec857369274ef710c6f6ce4ca1355f9e18f43cb9bc49ab089d8f4a6_amd64 as a component of Red Hat OpenStack Platform 16.2
  • rhosp-rhel8/osp-director-downloader@sha256:79f994acd1e9e2b58143915f73590b1cbb3381b37285088973fef549545b3a8a_amd64 as a component of Red Hat OpenStack Platform 16.2
  • rhosp-rhel8/osp-director-operator-bundle@sha256:fe042ad7fa6c0b0cc3645205b817c70ed2498ac8f3d992dfaef5ca921b46da7f_amd64 as a component of Red Hat OpenStack Platform 16.2
  • rhosp-rhel8/osp-director-operator@sha256:451c7a787a5d8560f71928921eee70875c9c3fa58a606f602d6677a9872fea47_amd64 as a component of Red Hat OpenStack Platform 16.2

✅ 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 (11)