ghsa-7w7p-f566-6r85
Vulnerability from github
Published
2022-05-14 02:09
Modified
2022-05-14 02:09
Details

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.

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{
  "affected": [],
  "aliases": [
    "CVE-2014-7155"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2014-10-02T14:55:00Z",
    "severity": "MODERATE"
  },
  "details": "The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.",
  "id": "GHSA-7w7p-f566-6r85",
  "modified": "2022-05-14T02:09:44Z",
  "published": "2022-05-14T02:09:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-7155"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/61858"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/61890"
    },
    {
      "type": "WEB",
      "url": "http://security.gentoo.org/glsa/glsa-201412-42.xml"
    },
    {
      "type": "WEB",
      "url": "http://support.citrix.com/article/CTX200218"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2014/dsa-3041"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/70057"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1030888"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-105.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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