github - ghsa-r6c5-m6xc-3746

ghsa-r6c5-m6xc-3746

Vulnerability from github

Published

2023-01-09 12:30

Modified

2023-01-13 15:30

Severity ?

8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Details

A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or past commit 2e7eab81425a

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{
  "affected": [],
  "aliases": [
    "CVE-2022-2196"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1188"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-01-09T11:15:00Z",
    "severity": "HIGH"
  },
  "details": "A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn\u0027t need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or past commit 2e7eab81425a",
  "id": "GHSA-r6c5-m6xc-3746",
  "modified": "2023-01-13T15:30:26Z",
  "published": "2023-01-09T12:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2196"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2e7eab81425ad6c875f2ed47c0ce01e78afc38a5"
    },
    {
      "type": "WEB",
      "url": "https://kernel.dance/#2e7eab81425a"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2022-2196

Vulnerability from cvelistv5

Published

2023-01-09 10:59

Modified

2024-08-03 00:32

Severity ?

5.8 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L

Summary

Speculative execution attacks in KVM VMX

References

▼	URL	Tags
	https://kernel.dance/#2e7eab81425a
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2e7eab81425ad6c875f2ed47c0ce01e78afc38a5
	https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html

Impacted products

▼	Vendor	Product
	Linux	Linux Kernel

Show details on NVD website

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{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T00:32:08.645Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://security.netapp.com/advisory/ntap-20230223-0002/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://kernel.dance/#2e7eab81425a"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2e7eab81425ad6c875f2ed47c0ce01e78afc38a5"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-2196",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-01T15:07:47.721131Z",
                "version": "2.0.3"
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        ],
        "providerMetadata": {
          "dateUpdated": "2024-08-01T15:08:01.626Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    "cna": {
      "affected": [
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              "status": "affected",
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      ],
      "datePublic": "2022-10-18T22:00:00.000Z",
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      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
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      "providerMetadata": {
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        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"
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      "source": {
        "discovery": "INTERNAL"
      },
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    "datePublished": "2023-01-09T10:59:53.099Z",
    "dateReserved": "2022-06-24T13:29:09.969Z",
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  },
  "dataType": "CVE_RECORD",
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}

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.

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