ghsa-jpwx-jg65-3x5w
Vulnerability from github
Published
2022-05-17 03:30
Modified
2022-05-17 03:30
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.

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{
  "affected": [],
  "aliases": [
    "CVE-2016-3157"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-04-12T16:59:00Z",
    "severity": "HIGH"
  },
  "details": "The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.",
  "id": "GHSA-jpwx-jg65-3x5w",
  "modified": "2022-05-17T03:30:55Z",
  "published": "2022-05-17T03:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-3157"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2016/dsa-3607"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/84594"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1035308"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2968-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2968-2"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2969-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2970-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2971-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2971-2"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2971-3"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2996-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2997-1"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-171.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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