ghsa-p42f-m78x-844r
Vulnerability from github
Published
2025-10-31 12:30
Modified
2025-11-05 00:31
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

Some Viridian hypercalls can specify a mask of vCPU IDs as an input, in one of three formats. Xen has boundary checking bugs with all three formats, which can cause out-of-bounds reads and writes while processing the inputs.

  • CVE-2025-58147. Hypercalls using the HV_VP_SET Sparse format can cause vpmask_set() to write out of bounds when converting the bitmap to Xen's format.

  • CVE-2025-58148. Hypercalls using any input format can cause send_ipi() to read d->vcpu[] out-of-bounds, and operate on a wild vCPU pointer.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-58148"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-31T12:15:35Z",
    "severity": "HIGH"
  },
  "details": "[This CNA information record relates to multiple CVEs; the\ntext explains which aspects/vulnerabilities correspond to which CVE.]\n\nSome Viridian hypercalls can specify a mask of vCPU IDs as an input, in\none of three formats.  Xen has boundary checking bugs with all three\nformats, which can cause out-of-bounds reads and writes while processing\nthe inputs.\n\n * CVE-2025-58147.  Hypercalls using the HV_VP_SET Sparse format can\n   cause vpmask_set() to write out of bounds when converting the bitmap\n   to Xen\u0027s format.\n\n * CVE-2025-58148.  Hypercalls using any input format can cause\n   send_ipi() to read d-\u003evcpu[] out-of-bounds, and operate on a wild\n   vCPU pointer.",
  "id": "GHSA-p42f-m78x-844r",
  "modified": "2025-11-05T00:31:32Z",
  "published": "2025-10-31T12:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58148"
    },
    {
      "type": "WEB",
      "url": "https://xenbits.xenproject.org/xsa/advisory-475.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/10/21/1"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-475.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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