Red Hat Security Advisory: java-21-openjdk security update
Multiple vulnerabilities have been identified in the java-21-openjdk packages used in Red Hat Enterprise Linux 8 and 9. These include a long exception message that can cause a crash (CVE-2024-21011), an integer overflow in the C1 compiler address generation (CVE-2024-21068), and an improper reverse DNS lookup in the HTTP/2 client (CVE-2024-21012). Red Hat has issued a security update addressing these issues with a moderate security impact rating.
AI Analysis
Technical Summary
The java-21-openjdk packages for Red Hat Enterprise Linux 8 and 9 contain several security vulnerabilities. CVE-2024-21011 involves a long exception message that can lead to a crash. CVE-2024-21068 is an integer overflow in the C1 compiler's address generation, and CVE-2024-21012 concerns an improper reverse DNS lookup in the HTTP/2 client. These vulnerabilities have been addressed in a security update released by Red Hat as part of advisory RHSA-2024:1828. The update is rated as having a moderate security impact.
Potential Impact
The vulnerabilities may cause application crashes (CVE-2024-21011), potential memory corruption or unexpected behavior due to integer overflow in the compiler (CVE-2024-21068), and improper network behavior related to reverse DNS lookups in the HTTP/2 client (CVE-2024-21012). These issues could affect the stability and security of Java applications running on affected Red Hat Enterprise Linux systems.
Mitigation Recommendations
Red Hat has released an official security update for java-21-openjdk packages on Red Hat Enterprise Linux 8 and 9 that addresses these vulnerabilities. Users should apply the update as described in Red Hat advisory RHSA-2024:1828 and the related article https://access.redhat.com/articles/11258 to remediate these issues. Since this is an official fix, applying the update is the recommended mitigation.
Red Hat Security Advisory: java-21-openjdk security update
Description
Multiple vulnerabilities have been identified in the java-21-openjdk packages used in Red Hat Enterprise Linux 8 and 9. These include a long exception message that can cause a crash (CVE-2024-21011), an integer overflow in the C1 compiler address generation (CVE-2024-21068), and an improper reverse DNS lookup in the HTTP/2 client (CVE-2024-21012). Red Hat has issued a security update addressing these issues with a moderate security impact rating.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The java-21-openjdk packages for Red Hat Enterprise Linux 8 and 9 contain several security vulnerabilities. CVE-2024-21011 involves a long exception message that can lead to a crash. CVE-2024-21068 is an integer overflow in the C1 compiler's address generation, and CVE-2024-21012 concerns an improper reverse DNS lookup in the HTTP/2 client. These vulnerabilities have been addressed in a security update released by Red Hat as part of advisory RHSA-2024:1828. The update is rated as having a moderate security impact.
Potential Impact
The vulnerabilities may cause application crashes (CVE-2024-21011), potential memory corruption or unexpected behavior due to integer overflow in the compiler (CVE-2024-21068), and improper network behavior related to reverse DNS lookups in the HTTP/2 client (CVE-2024-21012). These issues could affect the stability and security of Java applications running on affected Red Hat Enterprise Linux systems.
Mitigation Recommendations
Red Hat has released an official security update for java-21-openjdk packages on Red Hat Enterprise Linux 8 and 9 that addresses these vulnerabilities. Users should apply the update as described in Red Hat advisory RHSA-2024:1828 and the related article https://access.redhat.com/articles/11258 to remediate these issues. Since this is an official fix, applying the update is the recommended mitigation.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2024:1828
- Cve Count
- 4
- Additional Cves
- ["CVE-2024-21012","CVE-2024-21068","CVE-2024-21094"]
- Cvss Version
- null
Threat ID: 6a3da1fa4853345fc18357a2
Added to database: 06/25/2026, 21:47:38 UTC
Last enriched: 06/25/2026, 22:52:12 UTC
Last updated: 07/02/2026, 20:51:13 UTC
Views: 13
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