msrc_cve-2024-28757
Vulnerability from csaf_microsoft
Published
2024-03-02 08:00
Modified
2025-03-14 00:00
Summary
libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

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-2024-28757 libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate). - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-28757.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": "libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).",
    "tracking": {
      "current_release_date": "2025-03-14T00:00:00.000Z",
      "generator": {
        "date": "2025-10-20T01:08:04.814Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2024-28757",
      "initial_release_date": "2024-03-02T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2024-06-30T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2025-02-27T00:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added expat to CBL-Mariner 2.0\nAdded expat to Azure Linux 3.0"
        },
        {
          "date": "2025-03-14T00:00:00.000Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added python3 to Azure Linux 3.0\nAdded expat to Azure Linux 3.0\nAdded expat to CBL-Mariner 2.0"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.0",
                "product": {
                  "name": "CBL Mariner 2.0",
                  "product_id": "17086"
                }
              },
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 expat 2.6.2-2",
                "product": {
                  "name": "\u003ccbl2 expat 2.6.2-2",
                  "product_id": "8"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 expat 2.6.2-2",
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                  "product_id": "17399"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003cazl3 expat 2.6.2-1",
                "product": {
                  "name": "\u003cazl3 expat 2.6.2-1",
                  "product_id": "5"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 expat 2.6.2-1",
                "product": {
                  "name": "azl3 expat 2.6.2-1",
                  "product_id": "17783"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 expat 2.5.0-1",
                "product": {
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                  "product_id": "2"
                }
              },
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                "category": "product_version",
                "name": "cbl2 expat 2.5.0-1",
                "product": {
                  "name": "cbl2 expat 2.5.0-1",
                  "product_id": "19901"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003cazl3 expat 2.5.0-1",
                "product": {
                  "name": "\u003cazl3 expat 2.5.0-1",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 expat 2.5.0-1",
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              }
            ],
            "category": "product_name",
            "name": "expat"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 python3 3.9.19-13",
                "product": {
                  "name": "\u003ccbl2 python3 3.9.19-13",
                  "product_id": "4"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 python3 3.9.19-13",
                "product": {
                  "name": "cbl2 python3 3.9.19-13",
                  "product_id": "19681"
                }
              }
            ],
            "category": "product_name",
            "name": "python3"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 cmake 3.21.4-17",
                "product": {
                  "name": "\u003ccbl2 cmake 3.21.4-17",
                  "product_id": "3"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 cmake 3.21.4-17",
                "product": {
                  "name": "cbl2 cmake 3.21.4-17",
                  "product_id": "19756"
                }
              }
            ],
            "category": "product_name",
            "name": "cmake"
          },
          {
            "category": "product_name",
            "name": "azl3 cmake 3.30.3-6",
            "product": {
              "name": "azl3 cmake 3.30.3-6",
              "product_id": "7"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 python3 3.12.3-5",
            "product": {
              "name": "azl3 python3 3.12.3-5",
              "product_id": "6"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccbl2 expat 2.6.2-2 as a component of CBL Mariner 2.0",
          "product_id": "17086-8"
        },
        "product_reference": "8",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
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        },
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      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 expat 2.6.2-1 as a component of Azure Linux 3.0",
          "product_id": "17084-5"
        },
        "product_reference": "5",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
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      },
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        },
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      },
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        },
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        "relates_to_product_reference": "17086"
      },
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        "category": "default_component_of",
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        },
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        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
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          "product_id": "19681-17086"
        },
        "product_reference": "19681",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
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        },
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      },
      {
        "category": "default_component_of",
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          "product_id": "19756-17086"
        },
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        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 cmake 3.30.3-6 as a component of Azure Linux 3.0",
          "product_id": "17084-7"
        },
        "product_reference": "7",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 expat 2.5.0-1 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 expat 2.5.0-1 as a component of Azure Linux 3.0",
          "product_id": "19906-17084"
        },
        "product_reference": "19906",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
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          "product_id": "17084-6"
        },
        "product_reference": "6",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-28757",
      "flags": [
        {
          "label": "vulnerable_code_not_in_execute_path",
          "product_ids": [
            "17084-7",
            "17084-6"
          ]
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "mitre",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "17399-17086",
          "17783-17084",
          "19901-17086",
          "19681-17086",
          "19756-17086",
          "19906-17084"
        ],
        "known_affected": [
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          "17084-5",
          "17086-2",
          "17086-4",
          "17086-3",
          "17084-1"
        ],
        "known_not_affected": [
          "17084-7",
          "17084-6"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2024-28757 libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate). - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-28757.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-06-30T07:00:00.000Z",
          "details": "2.6.2-2:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17086-8",
            "17086-2"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2024-06-30T07:00:00.000Z",
          "details": "2.6.2-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-5",
            "17084-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2024-06-30T07:00:00.000Z",
          "details": "Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17086-4",
            "17086-3"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "17086-8",
            "17084-5",
            "17086-2",
            "17086-4",
            "17086-3",
            "17084-1"
          ]
        }
      ],
      "title": "libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate)."
    }
  ]
}


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