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_6105.json
Red 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
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Red Hat Security Advisory
Synopsis:           Important: Red Hat JBoss Core Services Apache HTTP Server 2.4.57 SP1 security update
Advisory ID:        RHSA-2023:6105-01
Product:            Red Hat JBoss Core Services
Advisory URL:       https://access.redhat.com/errata/RHSA-2023:6105
Issue date:         2023-10-26
Revision:           01
CVE Names:          CVE-2023-44487
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Summary: 
An update is now available for Red Hat JBoss Core Services.
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:
Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products and packaged under Red Hat JBoss Core Services, to allow for faster distribution of updates and for a more consistent update experience.
This release of Red Hat JBoss Core Services Apache HTTP Server 2.4.57 Service Pack 1 serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.57, and includes bug fixes and enhancements, which are documented in the Release Notes linked to in the References section.
Security Fix(es):
* nghttp2: HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) [Major Incident] (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:
https://access.redhat.com/articles/11258
CVEs:
CVE-2023-44487
References:
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/RHSB-2023-003