ghsa-cr4c-368c-2fc2
Vulnerability from github
Published
2022-05-17 02:37
Modified
2022-05-17 02:37
Details

Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2016-7777"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-10-07T14:59:00Z",
    "severity": "MODERATE"
  },
  "details": "Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it.",
  "id": "GHSA-cr4c-368c-2fc2",
  "modified": "2022-05-17T02:37:04Z",
  "published": "2022-05-17T02:37:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-7777"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201611-09"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/article/CTX217363"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/93344"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1036942"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-190.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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