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Red Hat Security Advisory 2023-5784-01
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.
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_5784.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: Red Hat JBoss Web Server 5.7.5 release and security updateAdvisory ID: RHSA-2023:5784-01Product: Red Hat JBoss Web ServerAdvisory URL: https://access.redhat.com/errata/RHSA-2023:5784Issue date: 2023-10-17Revision: 01CVE Names: CVE-2023-44487====================================================================Summary: Red Hat JBoss Web Server 5.7.5 zip release is now available for Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, and Windows Server.Red Hat Product Security has rated this release 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: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 (mod_cluster), 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.Security Fix(es):* tomcat: HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)A Red Hat Security Bulletin which addresses further details about this flaw is available in the References section.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:CVEs:CVE-2023-44487References:https://access.redhat.com/security/updates/classification/#importanthttps://access.redhat.com/security/vulnerabilities/RHSB-2023-003https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=webserver&downloadType=securityPatches&version=5.7Related news
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Red Hat Security Advisory 2024-0193-03 - An update is now available for Red Hat OpenShift Container Platform 4.13.
Red Hat Security Advisory 2023-7653-03 - An update to the images for Red Hat Integration - Service Registry is now available from the Red Hat Container Catalog. The purpose of this text-only errata is to inform you about the security issues fixed in this release. Issues addressed include bypass and denial of service vulnerabilities.
Red Hat Security Advisory 2023-7522-01 - 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 2023-6837-01 - Red Hat OpenShift Container Platform release 4.14.2 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a cross site scripting vulnerability.
Red Hat Security Advisory 2023-7205-01 - An update for the nodejs:20 module is now available for Red Hat Enterprise Linux 8. Issues addressed include denial of service and traversal vulnerabilities.
Red Hat Security Advisory 2023-6233-01 - Red Hat OpenShift Container Platform low-latency extras release 4.12, which provides an update for cnf-tests-container, performance-addon-operator-must-gather-rhel8-container, NUMA-aware secondary scheduler and numaresources-operator, is now available. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-6200-01 - The multicluster engine for Kubernetes 2.1.9 General Availability release images, which contains security fixes and update container images. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-6105-01 - An update is now available for Red Hat JBoss Core Services. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-6085-01 - An update is now available for Red Hat Openshift distributed tracing 2.9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-6084-01 - Updated images are now available for Red Hat Advanced Cluster Security. The updated image includes new features and bug fixes. 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 2023-5980-01 - Updated Satellite 6.11 packages that fix several bugs are now available for Red Hat Satellite. Issues addressed include code execution and denial of service vulnerabilities.
Red Hat Security Advisory 2023-5974-01 - An update for network-observability-console-plugin-container, network-observability-ebpf-agent-container, network-observability-flowlogs-pipeline-container, network-observability-operator-bundle-container, and network-observability-operator-container is now available for NETWORK-OBSERVABILITY-1.4.0-RHEL-9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5973-01 - Red Hat AMQ Streams 2.5.1 is now available from the Red Hat Customer Portal. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5715-01 - An update for the nginx:1.20 module is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5712-01 - An update for the nginx:1.20 module is now available for Red Hat Enterprise Linux 8. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5951-01 - An update is now available for Red Hat OpenShift Service Mesh 2.3 for RHEL 8.
Red Hat Security Advisory 2023-5950-01 - An update is now available for Red Hat OpenShift Service Mesh 2.2 for RHEL 8.
Red Hat Security Advisory 2023-5929-01 - An update for tomcat is now available for Red Hat Enterprise Linux 9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5864-01 - An update for grafana is now available for Red Hat Enterprise Linux 9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5849-01 - 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 2023-5838-01 - libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 protocol in C. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5801-01 - Migration Toolkit for Runtimes 1.2.1 Images. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5706-01 - .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 2023-5766-01 - 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 2023-5714-01 - nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5709-01 - .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 7.0 to SDK 7.0.112 and Runtime 7.0.12. Issues addressed include a denial of service vulnerability.
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
A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see ...
swift-nio-http2 is vulnerable to a denial-of-service vulnerability in which a malicious client can create and then reset a large number of HTTP/2 streams in a short period of time. This causes swift-nio-http2 to commit to a large amount of expensive work which it then throws away, including creating entirely new `Channel`s to serve the traffic. This can easily overwhelm an `EventLoop` and prevent it from making forward progress. swift-nio-http2 1.28 contains a remediation for this issue that applies reset counter using a sliding window. This constrains the number of stream resets that may occur in a given window of time. Clients violating this limit will have their connections torn down. This allows clients to continue to cancel streams for legitimate reasons, while constraining malicious actors.
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,
The code in Apache Tomcat 9.0.0.M1 to 9.0.0.M11, 8.5.0 to 8.5.6, 8.0.0.RC1 to 8.0.38, 7.0.0 to 7.0.72, and 6.0.0 to 6.0.47 that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack and/or obtain sensitive information from requests other then their own.