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Red Hat Security Advisory 2023-5838-01
Red Hat Security Advisory 2023-5838-01 - libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 protocol in C. Issues addressed include a denial of service vulnerability.
The following data is constructed from data provided by Red Hat's json file at:https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_5838.jsonRed Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.- Packet Storm Staff====================================================================Red Hat Security AdvisorySynopsis: Important: nghttp2 security updateAdvisory ID: RHSA-2023:5838-01Product: Red Hat Enterprise LinuxAdvisory URL: https://access.redhat.com/errata/RHSA-2023:5838Issue date: 2023-10-18Revision: 01CVE Names: CVE-2023-44487====================================================================Summary: An update for nghttp2 is now available for Red Hat Enterprise Linux 9.Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.Description:libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.Security Fix(es):* HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Solution:https://access.redhat.com/articles/11258CVEs:CVE-2023-44487References:https://access.redhat.com/security/updates/classification/#importanthttps://access.redhat.com/security/vulnerabilities/RHSB-2023-003Related news
Ubuntu Security Notice 6754-1 - It was discovered that nghttp2 incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause nghttp2 to consume resources, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that nghttp2 incorrectly handled request cancellation. A remote attacker could possibly use this issue to cause nghttp2 to consume resources, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
Red Hat Security Advisory 2024-0766-03 - Red Hat OpenShift Container Platform release 4.15.0 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-0304-03 - Updated images are now available for Red Hat Advanced Cluster Security 3.74. The updated images includes bug and security fixes.
Red Hat Security Advisory 2023-7704-03 - Red Hat OpenShift Virtualization release 4.14.1 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-7521-01 - Red Hat OpenShift Virtualization release 4.13.6 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-7345-01 - An update is now available for Red Hat OpenShift GitOps 1.9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-6239-01 - An update is now available for Kiali for RHEL 8. Issues addressed include a denial of service vulnerability.
Debian Linux Security Advisory 5540-1 - Two remotely exploitable security vulnerabilities were discovered in Jetty 9, a Java based web server and servlet engine. The HTTP/2 protocol implementation did not sufficiently verify if HPACK header values exceed their size limit. Furthermore the HTTP/2 protocol allowed a denial of service (server resource consumption) because request cancellation can reset many streams quickly. This problem is also known as Rapid Reset Attack.
Red Hat Security Advisory 2023-6148-01 - Red Hat Advanced Cluster Management for Kubernetes 2.7.9 General Availability release images, which provide security updates and fix bugs. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-6145-01 - Multicluster Engine for Kubernetes 2.2.9 General Availability release images, which contain security updates and fix bugs. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-6057-01 - An update for toolbox is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5979-01 - Updated Satellite 6.12 packages that fixes important security bugs and several regular bugs are now available for Red Hat Satellite. Issues addressed include a code execution vulnerability.
Red Hat Security Advisory 2023-5969-01 - An update for collectd-libpod-stats, etcd, and python-octavia-tests-tempest is now available for Red Hat OpenStack Platform 17.1.1. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5956-01 - Red Hat build of OptaPlanner 8.38.0 for Quarkus 2.13.8 release and security update is now available. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5945-01 - Red Hat AMQ Broker 7.10.4 is now available from the Red Hat Customer Portal. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5866-01 - An update for grafana is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5865-01 - An update for grafana is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.4 Telecommunications Update Service. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5835-01 - The rhc-worker-script packages provide Remote Host Configuration worker for executing an interpreted programming language script on hosts managed by Red Hat Insights. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5803-01 - Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5802-01 - Migration Toolkit for Runtimes 1.2.1 ZIP artifacts. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5784-01 - Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector, the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library. This release of Red Hat JBoss Web Server 5.7.5 serves as a replacement for Red Hat JBoss Web Server 5.7.4. This release includes bug fixes, enhancements and component upgrades, which are documented in the Release Notes, linked to in the References section. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5705-01 - .NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. New versions of .NET that address a security vulnerability are now available. The updated versions are .NET 6.0 to SDK 6.0.123 and Runtime 6.0.23. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5679-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.12.39. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5770-01 - nghttp2 contains the Hypertext Transfer Protocol version 2 client, server, and proxy programs as well as a library implementing the HTTP/2 protocol in C. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5769-01 - nghttp2 contains the Hypertext Transfer Protocol version 2 client, server, and proxy programs as well as a library implementing the HTTP/2 protocol in C. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5767-01 - nghttp2 contains the Hypertext Transfer Protocol version 2 client, server, and proxy programs as well as a library implementing the HTTP/2 protocol in C. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5766-01 - nghttp2 contains the Hypertext Transfer Protocol version 2 client, server, and proxy programs as well as a library implementing the HTTP/2 protocol in C. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5764-01 - Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5708-01 - .NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. New versions of .NET that address a security vulnerability are now available. The updated versions are .NET 6.0 to SDK 6.0.123 and Runtime 6.0.23. Issues addressed include a denial of service vulnerability.
Debian Linux Security Advisory 5522-2 - The patch to address CVE-2023-44487 (Rapid Reset Attack) was incomplete and caused a regression when using asynchronous I/O (the default for NIO and NIO2). DATA frames must be included when calculating the HTTP/2 overhead count to ensure that connections are not prematurely terminated.
Plus, many of the world’s largest cloud providers are warning of a vulnerability that attackers exploited in August to launch the largest distributed denial-of-service attack on record.
Cisco Talos is actively tracking the novel distributed denial-of-service (DDoS) attacks cloud services provider Cloudflare disclosed earlier this week. The techniques described in Cloudflare’s blog post resulted in a record-breaking DDoS attack and could facilitate much larger attacks in the future. CVE-2023-44487 CVE-2023-44487, a vulnerability in the
Amazon Web Services (AWS), Cloudflare, and Google on Tuesday said they took steps to mitigate record-breaking distributed denial-of-service (DDoS) attacks that relied on a novel technique called HTTP/2 Rapid Reset. The layer 7 attacks were detected in late August 2023, the companies said in a coordinated disclosure. The cumulative susceptibility to this attack is being tracked as CVE-2023-44487,