MSRC_CVE-2019-20503

Vulnerability from csaf_microsoft - Published: 2020-03-02 00:00 - Updated: 2024-06-30 07:00
Summary
usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init.

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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{
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    "csaf_version": "2.0",
    "distribution": {
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      "tlp": {
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        "url": "https://www.first.org/tlp/"
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    "notes": [
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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-2019-20503 usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init. - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2020/msrc_cve-2019-20503.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": "usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init.",
    "tracking": {
      "current_release_date": "2024-06-30T07:00:00.000Z",
      "generator": {
        "date": "2025-10-19T17:51:49.891Z",
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      },
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      "initial_release_date": "2020-03-02T00:00:00.000Z",
      "revision_history": [
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              },
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  "vulnerabilities": [
    {
      "cve": "CVE-2019-20503",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "general",
          "text": "mitre",
          "title": "Assigning CNA"
        }
      ],
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          "16817-1",
          "17084-2"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2019-20503 usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init. - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2020/msrc_cve-2019-20503.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-06-17T00:00:00.000Z",
          "details": "0.9.5.0-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
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            "16817-1",
            "17084-2"
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        }
      ],
      "scores": [
        {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 6.5,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "17086-3",
            "16817-1",
            "17084-2"
          ]
        }
      ],
      "title": "usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init."
    }
  ]
}


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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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