Red Hat Security Advisory: Red Hat AMQ Broker 7.11.3 release and security update
🔗 CVE IDs covered (4)
📋 Description
CVE-2023-34462 — netty: SniHandler 16MB allocation leads to OOM CVE-2023-40167 — jetty: Improper validation of HTTP/1 content-length CVE-2023-41080 — tomcat: Open Redirect vulnerability in FORM authentication CVE-2023-44487 — HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)
🎯 Affected products1
- Red Hat AMQ Broker 7
✅ 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: Configuration of SniHandler with an idle timeout will mitigate this issue. 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 (10)
- selfhttps://access.redhat.com/errata/RHSA-2023:5946
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://access.redhat.com/security/vulnerabilities/RHSB-2023-003
- externalhttps://access.redhat.com/jbossnetwork/restricted/listSoftware.html?downloadType=distributions&product=jboss.amq.broker&version=7.11.3
- externalhttps://access.redhat.com/documentation/en-us/red_hat_amq_broker/7.11
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2216888
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2235370
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2239634
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2242803
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_5946.json