ghsa-wjrh-v4vw-2jmc
Vulnerability from github
Published
2022-05-13 01:42
Modified
2022-05-13 01:42
Details

The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the "CR8-load exiting" and "CR8-store exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR shadow" vmcs12 control, which allows KVM L2 guest OS users to obtain read and write access to the hardware CR8 register.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2017-12154"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-09-26T05:29:00Z",
    "severity": "HIGH"
  },
  "details": "The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the \"CR8-load exiting\" and \"CR8-store exiting\" L0 vmcs02 controls exist in cases where L1 omits the \"use TPR shadow\" vmcs12 control, which allows KVM L2 guest OS users to obtain read and write access to the hardware CR8 register.",
  "id": "GHSA-wjrh-v4vw-2jmc",
  "modified": "2022-05-13T01:42:38Z",
  "published": "2022-05-13T01:42:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12154"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/51aa68e7d57e3217192d88ce90fd5b8ef29ec94f"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:0676"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1062"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:1946"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2017-12154"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1491224"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3698-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3698-2"
    },
    {
      "type": "WEB",
      "url": "https://www.spinics.net/lists/kvm/msg155414.html"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=51aa68e7d57e3217192d88ce90fd5b8ef29ec94f"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3981"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/100856"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading...

Loading...

Loading...

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.