MSRC_CVE-2023-3812

Vulnerability from csaf_microsoft - Published: 2023-07-01 07:00 - Updated: 2023-08-03 00:00
Summary
Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
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{
  "document": {
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    "csaf_version": "2.0",
    "distribution": {
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      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
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      "contact_details": "secure@microsoft.com",
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        "summary": "CVE-2023-3812 Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags - VEX",
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        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
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    ],
    "title": "Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags",
    "tracking": {
      "current_release_date": "2023-08-03T00:00:00.000Z",
      "generator": {
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        "name": "Out-of-bounds Write"
      },
      "notes": [
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          "text": "redhat",
          "title": "Assigning CNA"
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      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-3812 Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-3812.json"
        }
      ],
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          "date": "2023-08-03T00:00:00.000Z",
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "temporalScore": 7.8,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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      ],
      "title": "Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.