ghsa-m5gv-cmjh-79r8
Vulnerability from github
Published
2022-09-01 00:00
Modified
2022-11-02 12:00
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-2153"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-31T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in the Linux kernel\u2019s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.",
  "id": "GHSA-m5gv-cmjh-79r8",
  "modified": "2022-11-02T12:00:38Z",
  "published": "2022-09-01T00:00:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2153"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2069736"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2022/06/22/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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