Headline
Red Hat Security Advisory 2023-5706-01
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.
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_5706.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: dotnet6.0 security updateAdvisory ID: RHSA-2023:5706-01Product: Red Hat Enterprise LinuxAdvisory URL: https://access.redhat.com/errata/RHSA-2023:5706Issue date: 2023-10-16Revision: 01CVE Names: CVE-2023-44487====================================================================Summary: An update for dotnet6.0 is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.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:.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.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
Red Hat Security Advisory 2024-1770-03 - Red Hat OpenShift Container Platform release 4.15.9 is now available with updates to packages and images that fix several bugs and add enhancements.
Red Hat Security Advisory 2024-0954-03 - The components for Red Hat OpenShift for Windows Containers 10.15.0 are now available. This product release includes bug fixes and security updates for the following packages: windows-machine-config-operator and windows-machine-config-operator-bundle. Issues addressed include a privilege escalation vulnerability.
Dell vApp Manger, versions prior to 9.2.4.x contain an arbitrary file read vulnerability. A remote attacker could potentially exploit this vulnerability to read arbitrary files from the target system.
Red Hat Security Advisory 2023-7641-03 - An update is now available for Red Hat JBoss Enterprise Application Platform 7.4. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-7639-03 - An update is now available for Red Hat JBoss Enterprise Application Platform 7.4 for Red Hat Enterprise Linux 9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-7555-01 - OpenShift API for Data Protection 1.3.0 is now available. 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.
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 2023-6071-01 - 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 2023-5979-01 - 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.
Ubuntu Security Notice 6438-1 - Kevin Jones discovered that .NET did not properly process certain X.509 certificates. An attacker could possibly use this issue to cause a denial of service. It was discovered that the .NET Kestrel web server did not properly handle HTTP/2 requests. A remote attacker could possibly use this issue to cause a denial of service.
Red Hat Security Advisory 2023-5930-01 - An update for varnish 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 2023-5866-01 - 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 2023-5802-01 - 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 2023-5770-01 - 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 2023-5765-01 - 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 2023-5764-01 - 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 2023-5711-01 - 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.
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,
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Remote code execution is possible with Apache Tomcat before 6.0.48, 7.x before 7.0.73, 8.x before 8.0.39, 8.5.x before 8.5.7, and 9.x before 9.0.0.M12 if JmxRemoteLifecycleListener is used and an attacker can reach JMX ports. The issue exists because this listener wasn't updated for consistency with the CVE-2016-3427 Oracle patch that affected credential types.