GHSA-H3VW-F6H8-86MG

Vulnerability from github – Published: 2022-05-24 16:56 – Updated: 2023-02-02 21:33
VLAI
Details

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2019-14835"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-09-17T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel\u0027s vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.",
  "id": "GHSA-h3vw-f6h8-86mg",
  "modified": "2023-02-02T21:33:45Z",
  "published": "2022-05-24T16:56:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-14835"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2019-14835"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/vulnerabilities/kernel-vhost"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1750727"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14835"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQFY6JYFIQ2VFQ7QCSXPWTUL5ZDNCJL5"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KQFY6JYFIQ2VFQ7QCSXPWTUL5ZDNCJL5"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2019/Nov/11"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2019/Sep/41"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20191031-0005"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4135-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4135-2"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2019/dsa-4531"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2019/09/17/1"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHBA-2019:2824"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2827"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2828"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2829"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2830"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2854"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2862"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2863"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2864"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2865"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2866"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2867"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2869"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2889"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2899"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2900"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2901"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2924"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"
    },
    {
      "type": "WEB",
      "url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2019/09/24/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2019/10/03/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2019/10/09/3"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2019/10/09/7"
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  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.