Red Hat Security Advisory: OpenJDK 8u452 Security Update for Portable Linux Builds
The OpenJDK 8 packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit. This release of the Red Hat build of OpenJDK 8 (8u452) for portable Linux serves as a replacement for Red Hat build of OpenJDK 8 (8u442) and includes security and bug fixes as well as enhancements. For further information, refer to the release notes linked to in the References section. Security Fix(es): * JDK: Better TLS connection support (CVE-2025-21587) * JDK: Improve compiler transformations (CVE-2025-30691) * JDK: Enhance Buffered Image handling (CVE-2025-30698) 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
This advisory covers three security fixes in the OpenJDK 21 runtime environment as distributed by Red Hat for Red Hat Enterprise Linux 10 and related products. The fixes address vulnerabilities identified as CVE-2025-30698 (Buffered Image handling), CVE-2025-30691 (compiler transformations), and CVE-2025-21587 (TLS connection support). The vulnerabilities relate to issues categorized under CWE-208 (Information Exposure), CWE-120 (Classic Buffer Overflow), and CWE-122 (Heap-based Buffer Overflow). The update improves security by enhancing image processing, compiler behavior, and TLS connections. The advisory does not provide CVSS scores but rates the impact as moderate. The update is available and recommended for affected Red Hat Enterprise Linux 10 and CodeReady Linux Builder 10 packages.
Potential Impact
The vulnerabilities could potentially allow attackers to exploit weaknesses in image handling, compiler transformations, or TLS connections within the OpenJDK 21 runtime environment. The moderate severity rating indicates a meaningful but not critical risk. No known exploits in the wild have been reported. The issues could lead to information exposure or memory corruption if exploited.
Mitigation Recommendations
Red Hat has released an official security update for java-21-openjdk on Red Hat Enterprise Linux 10 and related products. Users should apply the update as described in the Red Hat advisory (RHSA-2025:7508) to remediate these vulnerabilities. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official patch.
Red Hat Security Advisory: OpenJDK 8u452 Security Update for Portable Linux Builds
Description
The OpenJDK 8 packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit. This release of the Red Hat build of OpenJDK 8 (8u452) for portable Linux serves as a replacement for Red Hat build of OpenJDK 8 (8u442) and includes security and bug fixes as well as enhancements. For further information, refer to the release notes linked to in the References section. Security Fix(es): * JDK: Better TLS connection support (CVE-2025-21587) * JDK: Improve compiler transformations (CVE-2025-30691) * JDK: Enhance Buffered Image handling (CVE-2025-30698) 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
This advisory covers three security fixes in the OpenJDK 21 runtime environment as distributed by Red Hat for Red Hat Enterprise Linux 10 and related products. The fixes address vulnerabilities identified as CVE-2025-30698 (Buffered Image handling), CVE-2025-30691 (compiler transformations), and CVE-2025-21587 (TLS connection support). The vulnerabilities relate to issues categorized under CWE-208 (Information Exposure), CWE-120 (Classic Buffer Overflow), and CWE-122 (Heap-based Buffer Overflow). The update improves security by enhancing image processing, compiler behavior, and TLS connections. The advisory does not provide CVSS scores but rates the impact as moderate. The update is available and recommended for affected Red Hat Enterprise Linux 10 and CodeReady Linux Builder 10 packages.
Potential Impact
The vulnerabilities could potentially allow attackers to exploit weaknesses in image handling, compiler transformations, or TLS connections within the OpenJDK 21 runtime environment. The moderate severity rating indicates a meaningful but not critical risk. No known exploits in the wild have been reported. The issues could lead to information exposure or memory corruption if exploited.
Mitigation Recommendations
Red Hat has released an official security update for java-21-openjdk on Red Hat Enterprise Linux 10 and related products. Users should apply the update as described in the Red Hat advisory (RHSA-2025:7508) to remediate these vulnerabilities. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:7508
- Cve Count
- 3
- Additional Cves
- ["CVE-2025-30691","CVE-2025-30698"]
Threat ID: 6a160985e29bf47b50651e5f
Added to database: 05/26/2026, 20:58:45 UTC
Last enriched: 08/04/2026, 15:56:06 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 119
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