{
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      "text": "Important"
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    "csaf_version": "2.0",
    "distribution": {
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        "url": "https://www.first.org/tlp/"
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      {
        "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 Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      },
      {
        "category": "details",
        "text": "CVE-2024-0409: fix incorrect cursor private key usage in Xwayland/Xephyr that\n  caused XSELINUX devPrivates corruption\n- CVE-2025-26597: fix buffer overflow in XkbChangeTypesOfKey() by properly resizing\n  key syms and actions when nGroups is zero\n- CVE-2025-26594: fix root cursor lifetime handling to prevent use-after-free\n  and stale references",
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      "id": "CLSA-2025:1763647564",
      "initial_release_date": "2025-11-20T14:07:01Z",
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          "number": "2",
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    "title": "xorg-x11-server-Xwayland: Fix of 3 CVEs"
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        "name": "Out-of-bounds Write"
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        {
          "category": "description",
          "text": "An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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          "date": "2025-11-20T14:06:06.727218Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2025:1763647564",
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            "confidentialityImpact": "HIGH",
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            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "title": "Vulnerability description"
        },
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          "title": "Vulnerability description"
        },
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "text": "A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.",
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