{
  "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-2023-1981 A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call causing the avahi daemon to crash. - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-1981.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": "A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call causing the avahi daemon to crash.",
    "tracking": {
      "current_release_date": "2024-12-12T00:00:00.000Z",
      "generator": {
        "date": "2025-10-20T00:26:38.237Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-1981",
      "initial_release_date": "2023-05-01T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2024-11-09T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2024-12-12T00:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added avahi to CBL-Mariner 2.0\nAdded avahi to Azure Linux 3.0"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              },
              {
                "category": "product_version",
                "name": "2.0",
                "product": {
                  "name": "CBL Mariner 2.0",
                  "product_id": "17086"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cazl3 avahi 0.8-5",
                "product": {
                  "name": "\u003cazl3 avahi 0.8-5",
                  "product_id": "3"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 avahi 0.8-5",
                "product": {
                  "name": "azl3 avahi 0.8-5",
                  "product_id": "17556"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 avahi 0.8-2",
                "product": {
                  "name": "\u003ccbl2 avahi 0.8-2",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 avahi 0.8-2",
                "product": {
                  "name": "cbl2 avahi 0.8-2",
                  "product_id": "18360"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003cazl3 avahi 0.8-3",
                "product": {
                  "name": "\u003cazl3 avahi 0.8-3",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 avahi 0.8-3",
                "product": {
                  "name": "azl3 avahi 0.8-3",
                  "product_id": "18361"
                }
              }
            ],
            "category": "product_name",
            "name": "avahi"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 avahi 0.8-5 as a component of Azure Linux 3.0",
          "product_id": "17084-3"
        },
        "product_reference": "3",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 avahi 0.8-5 as a component of Azure Linux 3.0",
          "product_id": "17556-17084"
        },
        "product_reference": "17556",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccbl2 avahi 0.8-2 as a component of CBL Mariner 2.0",
          "product_id": "17086-2"
        },
        "product_reference": "2",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 avahi 0.8-2 as a component of CBL Mariner 2.0",
          "product_id": "18360-17086"
        },
        "product_reference": "18360",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 avahi 0.8-3 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 avahi 0.8-3 as a component of Azure Linux 3.0",
          "product_id": "18361-17084"
        },
        "product_reference": "18361",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-1981",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "general",
          "text": "redhat",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "17556-17084",
          "18360-17086",
          "18361-17084"
        ],
        "known_affected": [
          "17084-3",
          "17086-2",
          "17084-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-1981 A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call causing the avahi daemon to crash. - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-1981.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-11-09T00:00:00.000Z",
          "details": "0.8-3:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-3",
            "17084-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2024-11-09T00:00:00.000Z",
          "details": "0.8-2:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17086-2"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "temporalScore": 5.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "17084-3",
            "17086-2",
            "17084-1"
          ]
        }
      ],
      "title": "A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call causing the avahi daemon to crash."
    }
  ]
}