Red Hat Security Advisory: tomcat9 security update
Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process. Tomcat is developed in an open and participatory environment and released under the Apache Software License version 2.0. Tomcat is intended to be a collaboration of the best-of-breed developers from around the world. Security Fix(es): * tomcat: Incomplete fix for CVE-2024-50379 - RCE due to TOCTOU issue in JSP compilation (CVE-2024-56337) * tomcat: Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame (CVE-2025-31650) 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.
AI Analysis
Technical Summary
Red Hat JBoss Web Server 5.8.4 addresses two security issues in its Apache Tomcat component. CVE-2024-56337 is a remote code execution vulnerability stemming from an incomplete fix of a TOCTOU issue in JSP compilation, which could allow attackers to execute arbitrary code. CVE-2025-31650 is a denial of service vulnerability triggered by malformed HTTP/2 PRIORITY_UPDATE frames, potentially disrupting service availability. This release supersedes version 5.8.3 and includes bug fixes and component upgrades. The update is applicable to Red Hat Enterprise Linux 7, 8, and 9. Red Hat Product Security rates the update as important, but no CVSS scores are provided. The vendor advisory recommends applying this update after ensuring all previous errata are applied.
Potential Impact
The vulnerabilities fixed in this update include a remote code execution risk due to a TOCTOU issue in JSP compilation and a denial of service risk via malformed HTTP/2 frames. Successful exploitation of CVE-2024-56337 could allow an attacker to execute arbitrary code on the affected system. CVE-2025-31650 could allow an attacker to disrupt service availability by causing a denial of service. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released JBoss Web Server 5.8.4 as a security update that addresses these vulnerabilities. Users should apply this update after confirming that all previously released errata relevant to their system have been installed. Detailed update instructions are available from Red Hat's official documentation. No alternative mitigations or workarounds are specified in the advisory.
Red Hat Security Advisory: tomcat9 security update
Description
Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process. Tomcat is developed in an open and participatory environment and released under the Apache Software License version 2.0. Tomcat is intended to be a collaboration of the best-of-breed developers from around the world. Security Fix(es): * tomcat: Incomplete fix for CVE-2024-50379 - RCE due to TOCTOU issue in JSP compilation (CVE-2024-56337) * tomcat: Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame (CVE-2025-31650) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat JBoss Web Server 5.8.4 addresses two security issues in its Apache Tomcat component. CVE-2024-56337 is a remote code execution vulnerability stemming from an incomplete fix of a TOCTOU issue in JSP compilation, which could allow attackers to execute arbitrary code. CVE-2025-31650 is a denial of service vulnerability triggered by malformed HTTP/2 PRIORITY_UPDATE frames, potentially disrupting service availability. This release supersedes version 5.8.3 and includes bug fixes and component upgrades. The update is applicable to Red Hat Enterprise Linux 7, 8, and 9. Red Hat Product Security rates the update as important, but no CVSS scores are provided. The vendor advisory recommends applying this update after ensuring all previous errata are applied.
Potential Impact
The vulnerabilities fixed in this update include a remote code execution risk due to a TOCTOU issue in JSP compilation and a denial of service risk via malformed HTTP/2 frames. Successful exploitation of CVE-2024-56337 could allow an attacker to execute arbitrary code on the affected system. CVE-2025-31650 could allow an attacker to disrupt service availability by causing a denial of service. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released JBoss Web Server 5.8.4 as a security update that addresses these vulnerabilities. Users should apply this update after confirming that all previously released errata relevant to their system have been installed. Detailed update instructions are available from Red Hat's official documentation. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:4521
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-31650"]
- Cvss Version
- null
Threat ID: 6a4049eb27e9c79719836a71
Added to database: 06/27/2026, 22:08:43 UTC
Last enriched: 06/27/2026, 22:41:07 UTC
Last updated: 07/03/2026, 01:51:10 UTC
Views: 10
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