{
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      "text": "Moderate"
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    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update is now available for OpenJDK.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. 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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The OpenJDK 21 packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java Software Development Kit.\n\nThis release of the Red Hat build of OpenJDK 21 (21.0.6) for Windows serves as a replacement for the Red Hat build of OpenJDK 21 (21.0.5) and includes security and bug fixes. For further information, refer to the release notes linked to in the References section.\n\nSecurity Fix(es):\n\n* JDK: Enhance array handling (CVE-2025-21502)\n\nFor 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.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
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      "name": "Red Hat Product Security",
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    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2025:0428",
        "url": "https://access.redhat.com/errata/RHSA-2025:0428"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
      },
      {
        "category": "external",
        "summary": "https://docs.redhat.com/en/documentation/red_hat_build_of_openjdk/21/html/release_notes_for_red_hat_build_of_openjdk_21.0.6/index",
        "url": "https://docs.redhat.com/en/documentation/red_hat_build_of_openjdk/21/html/release_notes_for_red_hat_build_of_openjdk_21.0.6/index"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_0428.json"
      }
    ],
    "title": "Red Hat Security Advisory: OpenJDK 21.0.6 Security Update for Windows Builds",
    "tracking": {
      "current_release_date": "2025-02-12T09:27:16+00:00",
      "generator": {
        "date": "2025-02-12T09:27:16+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.3.1"
        }
      },
      "id": "RHSA-2025:0428",
      "initial_release_date": "2025-01-22T20:44:48+00:00",
      "revision_history": [
        {
          "date": "2025-01-22T20:44:48+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2025-01-22T20:44:48+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2025-02-12T09:27:16+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
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      "version": "3"
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          {
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                "name": "Red Hat Build of OpenJDK 21.0.6",
                "product": {
                  "name": "Red Hat Build of OpenJDK 21.0.6",
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        "name": "Red Hat"
      }
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  "vulnerabilities": [
    {
      "cve": "CVE-2025-21502",
      "cwe": {
        "id": "CWE-195",
        "name": "Signed to Unsigned Conversion Error"
      },
      "discovery_date": "2025-01-20T11:15:11.094000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2338992"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to Oracle Java SE accessible. This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "JDK: Enhance array handling (Oracle CPU 2025-01)",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Build of OpenJDK 21.0.6"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-21502"
        },
        {
          "category": "external",
          "summary": "RHBZ#2338992",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2338992"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-21502",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-21502"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-21502",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21502"
        },
        {
          "category": "external",
          "summary": "https://www.oracle.com/security-alerts/cpujan2025.html#AppendixJAVA",
          "url": "https://www.oracle.com/security-alerts/cpujan2025.html#AppendixJAVA"
        }
      ],
      "release_date": "2025-01-21T20:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-01-22T20:44:48+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "Red Hat Build of OpenJDK 21.0.6"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2025:0428"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Build of OpenJDK 21.0.6"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "JDK: Enhance array handling (Oracle CPU 2025-01)"
    }
  ]
}