{
  "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-2019-19391 In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and \u003e options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2019/msrc_cve-2019-19391.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": "In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and \u003e options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective",
    "tracking": {
      "current_release_date": "2024-06-30T07:00:00.000Z",
      "generator": {
        "date": "2025-10-19T17:46:18.335Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2019-19391",
      "initial_release_date": "2019-11-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2024-06-30T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              },
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "16817"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cazl3 sysbench 1.0.20-5",
                "product": {
                  "name": "\u003cazl3 sysbench 1.0.20-5",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 sysbench 1.0.20-5",
                "product": {
                  "name": "azl3 sysbench 1.0.20-5",
                  "product_id": "20174"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003cazl3 sysbench 1.0.20-3",
                "product": {
                  "name": "\u003cazl3 sysbench 1.0.20-3",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 sysbench 1.0.20-3",
                "product": {
                  "name": "azl3 sysbench 1.0.20-3",
                  "product_id": "17037"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003cazl3 sysbench 1.0.20-3",
                "product": {
                  "name": "\u003cazl3 sysbench 1.0.20-3",
                  "product_id": "3"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 sysbench 1.0.20-3",
                "product": {
                  "name": "azl3 sysbench 1.0.20-3",
                  "product_id": "17037"
                }
              }
            ],
            "category": "product_name",
            "name": "sysbench"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 sysbench 1.0.20-5 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 sysbench 1.0.20-5 as a component of Azure Linux 3.0",
          "product_id": "20174-17084"
        },
        "product_reference": "20174",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 sysbench 1.0.20-3 as a component of Azure Linux 3.0",
          "product_id": "16817-2"
        },
        "product_reference": "2",
        "relates_to_product_reference": "16817"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 sysbench 1.0.20-3 as a component of Azure Linux 3.0",
          "product_id": "17037-16817"
        },
        "product_reference": "17037",
        "relates_to_product_reference": "16817"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 sysbench 1.0.20-3 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 sysbench 1.0.20-3 as a component of Azure Linux 3.0",
          "product_id": "17037-17084"
        },
        "product_reference": "17037",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-19391",
      "cwe": {
        "id": "CWE-843",
        "name": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
      },
      "notes": [
        {
          "category": "general",
          "text": "mitre",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "20174-17084",
          "17037-16817",
          "17037-17084"
        ],
        "known_affected": [
          "17084-1",
          "16817-2",
          "17084-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2019-19391 In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and \u003e options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2019/msrc_cve-2019-19391.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-06-30T07:00:00.000Z",
          "details": "1.0.20-3:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-1",
            "16817-2",
            "17084-3"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 9.1,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "17084-1",
            "16817-2",
            "17084-3"
          ]
        }
      ],
      "title": "In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and \u003e options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective"
    }
  ]
}