GSD-2022-2196

Vulnerability from gsd - Updated: 2023-12-13 01:19
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
Aliases
Aliases
CVE-2022-2196
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{
  "GSD": {
    "alias": "CVE-2022-2196",
    "description": "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": "GSD-2022-2196",
    "references": [
      "https://www.suse.com/security/cve/CVE-2022-2196.html",
      "https://advisories.mageia.org/CVE-2022-2196.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-2196"
      ],
      "details": "A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks.\u00a0L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn\u0027t need retpolines or IBPB\u00a0after 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\u00a02e7eab81425a\n",
      "id": "GSD-2022-2196",
      "modified": "2023-12-13T01:19:20.113823Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2022-2196",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux Kernel",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "0",
                          "version_value": "2e7eab81425a"
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          }
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      },
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            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L",
            "version": "3.1"
          }
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      "problemtype": {
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            "description": [
              {
                "cweId": "CWE-1188",
                "lang": "eng",
                "value": "CWE-1188 Insecure Default Initialization of Resource"
              }
            ]
          }
        ]
      },
      "references": {
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          {
            "name": "https://kernel.dance/#2e7eab81425a",
            "refsource": "MISC",
            "url": "https://kernel.dance/#2e7eab81425a"
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            "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"
          }
        ]
      },
      "source": {
        "discovery": "INTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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              "value": "A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks.\u00a0L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn\u0027t need retpolines or IBPB\u00a0after 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\u00a02e7eab81425a\n"
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      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
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          "impactScore": 6.0
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      },
      "lastModifiedDate": "2023-08-18T18:56Z",
      "publishedDate": "2023-01-09T11:15Z"
    }
  }
}


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  • 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.
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  • 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.



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