MSRC_CVE-2023-6546

Vulnerability from csaf_microsoft - Published: 2023-12-01 08:00 - Updated: 2024-01-04 00:00
Summary
Kernel: gsm multiplexing race condition leads to privilege escalation

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": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "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": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2023-6546 Kernel: gsm multiplexing race condition leads to privilege escalation - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-6546.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Kernel: gsm multiplexing race condition leads to privilege escalation",
    "tracking": {
      "current_release_date": "2024-01-04T00:00:00.000Z",
      "generator": {
        "date": "2025-12-27T16:50:41.355Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
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      "id": "msrc_CVE-2023-6546",
      "initial_release_date": "2023-12-01T08:00:00.000Z",
      "revision_history": [
        {
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                }
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            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
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                "category": "product_version_range",
                "name": "\u003ccbl2 kernel 5.15.148.1-1",
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        },
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        "relates_to_product_reference": "17086"
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      {
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-6546",
      "cwe": {
        "id": "CWE-362",
        "name": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)"
      },
      "notes": [
        {
          "category": "general",
          "text": "redhat",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
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          "19673-17086"
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        "known_affected": [
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-6546 Kernel: gsm multiplexing race condition leads to privilege escalation - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-6546.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-01-04T00:00:00.000Z",
          "details": "5.15.148.1-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
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            "17086-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "temporalScore": 7.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "17086-2",
            "17086-1"
          ]
        }
      ],
      "title": "Kernel: gsm multiplexing race condition leads to privilege escalation"
    }
  ]
}


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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.
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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.



Detection rules are retrieved from Rulezet.