msrc_cve-2025-52881
Vulnerability from csaf_microsoft
Published
2025-11-02 00:00
Modified
2025-12-07 01:37
Summary
runc: LSM labels can be bypassed with malicious config using dummy procfs files

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/"
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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": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2025-52881 runc: LSM labels can be bypassed with malicious config using dummy procfs files - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-52881.json"
      },
      {
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        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "runc: LSM labels can be bypassed with malicious config using dummy procfs files",
    "tracking": {
      "current_release_date": "2025-12-07T01:37:15.000Z",
      "generator": {
        "date": "2025-12-07T15:03:05.331Z",
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      "initial_release_date": "2025-11-02T00:00:00.000Z",
      "revision_history": [
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          "date": "2025-11-09T01:02:40.000Z",
          "legacy_version": "1",
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          "summary": "Information published."
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          "summary": "Information published."
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        {
          "date": "2025-12-07T01:37:15.000Z",
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      ],
      "status": "final",
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    }
  },
  "product_tree": {
    "branches": [
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          {
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                  "product_id": "17086"
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              },
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              },
              {
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                "name": "azl3 kubernetes 1.30.10-14",
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-52881",
      "cwe": {
        "id": "CWE-61",
        "name": "UNIX Symbolic Link (Symlink) Following"
      },
      "notes": [
        {
          "category": "general",
          "text": "GitHub_M",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
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          "20660-17084"
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          "17084-4",
          "17084-1",
          "17084-2"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-52881 runc: LSM labels can be bypassed with malicious config using dummy procfs files - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-52881.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2025-11-09T01:02:40.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17086-5"
          ]
        },
        {
          "category": "none_available",
          "date": "2025-11-09T01:02:40.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-4"
          ]
        },
        {
          "category": "none_available",
          "date": "2025-11-09T01:02:40.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-1"
          ]
        },
        {
          "category": "vendor_fix",
          "date": "2025-11-09T01:02:40.000Z",
          "details": "1.2.8-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17086-3"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "title": "runc: LSM labels can be bypassed with malicious config using dummy procfs files"
    }
  ]
}


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