usn-7862-3
Vulnerability from osv_ubuntu
Published
2025-11-13 14:47
Modified
2026-06-03 10:46
Summary
linux-xilinx-zynqmp vulnerability
Details

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this to expose sensitive information from the host OS.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-40300",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.15.0-1060-xilinx-zynqmp",
            "binary_version": "5.15.0-1060.64"
          },
          {
            "binary_name": "linux-headers-5.15.0-1060-xilinx-zynqmp",
            "binary_version": "5.15.0-1060.64"
          },
          {
            "binary_name": "linux-image-5.15.0-1060-xilinx-zynqmp",
            "binary_version": "5.15.0-1060.64"
          },
          {
            "binary_name": "linux-modules-5.15.0-1060-xilinx-zynqmp",
            "binary_version": "5.15.0-1060.64"
          },
          {
            "binary_name": "linux-tools-5.15.0-1060-xilinx-zynqmp",
            "binary_version": "5.15.0-1060.64"
          },
          {
            "binary_name": "linux-xilinx-zynqmp-headers-5.15.0-1060",
            "binary_version": "5.15.0-1060.64"
          },
          {
            "binary_name": "linux-xilinx-zynqmp-tools-5.15.0-1060",
            "binary_version": "5.15.0-1060.64"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "linux-xilinx-zynqmp",
        "purl": "pkg:deb/ubuntu/linux-xilinx-zynqmp@5.15.0-1060.64?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.15.0-1060.64"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.15.0-1022.26",
        "5.15.0-1023.27",
        "5.15.0-1025.29",
        "5.15.0-1027.31",
        "5.15.0-1030.34",
        "5.15.0-1031.35",
        "5.15.0-1035.39",
        "5.15.0-1036.40",
        "5.15.0-1037.41",
        "5.15.0-1038.42",
        "5.15.0-1039.43",
        "5.15.0-1041.45",
        "5.15.0-1044.48",
        "5.15.0-1046.50",
        "5.15.0-1050.54",
        "5.15.0-1051.55",
        "5.15.0-1052.56",
        "5.15.0-1053.57",
        "5.15.0-1054.58",
        "5.15.0-1055.59",
        "5.15.0-1056.60",
        "5.15.0-1057.61",
        "5.15.0-1059.63"
      ]
    }
  ],
  "aliases": [],
  "details": "Jean-Claude Graf, Sandro R\u00fcegge, Ali Hajiabadi, and Kaveh Razavi discovered\nthat the Linux kernel contained insufficient branch predictor isolation\nbetween a guest and a userspace hypervisor for certain processors. This\nflaw is known as VMSCAPE. An attacker in a guest VM could possibly use this\nto expose sensitive information from the host OS.\n",
  "id": "USN-7862-3",
  "modified": "2026-06-03T10:46:14Z",
  "published": "2025-11-13T14:47:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7862-3"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-40300"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-xilinx-zynqmp vulnerability",
  "upstream": [
    "UBUNTU-CVE-2025-40300"
  ]
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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