msrc_cve-2023-6992
Vulnerability from csaf_microsoft
Published
2024-01-01 08:00
Modified
2025-03-14 00:00
Summary
Memory corruption issues is Cloudflare zlib implementation

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-2023-6992 Memory corruption issues is Cloudflare zlib implementation - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2023-6992.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": "Memory corruption issues is Cloudflare zlib implementation",
    "tracking": {
      "current_release_date": "2025-03-14T00:00:00.000Z",
      "generator": {
        "date": "2025-10-20T00:58:25.388Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-6992",
      "initial_release_date": "2024-01-01T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-03-14T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "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": "\u003cazl3 teckit 2.5.12-4",
                "product": {
                  "name": "\u003cazl3 teckit 2.5.12-4",
                  "product_id": "7"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 teckit 2.5.12-4",
                "product": {
                  "name": "azl3 teckit 2.5.12-4",
                  "product_id": "16825"
                }
              }
            ],
            "category": "product_name",
            "name": "teckit"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cazl3 fltk 1.3.8-1",
                "product": {
                  "name": "\u003cazl3 fltk 1.3.8-1",
                  "product_id": "6"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 fltk 1.3.8-1",
                "product": {
                  "name": "azl3 fltk 1.3.8-1",
                  "product_id": "16826"
                }
              }
            ],
            "category": "product_name",
            "name": "fltk"
          },
          {
            "category": "product_name",
            "name": "cbl2 zlib 1.2.13-2",
            "product": {
              "name": "cbl2 zlib 1.2.13-2",
              "product_id": "1"
            }
          },
          {
            "category": "product_name",
            "name": "cbl2 mariadb-connector-c 3.1.10-6",
            "product": {
              "name": "cbl2 mariadb-connector-c 3.1.10-6",
              "product_id": "2"
            }
          },
          {
            "category": "product_name",
            "name": "cbl2 rubygem-mini_portile2 2.8.0-1",
            "product": {
              "name": "cbl2 rubygem-mini_portile2 2.8.0-1",
              "product_id": "3"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 rubygem-mini_portile2 2.8.4-1",
            "product": {
              "name": "azl3 rubygem-mini_portile2 2.8.4-1",
              "product_id": "4"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 zlib 1.3.1-1",
            "product": {
              "name": "azl3 zlib 1.3.1-1",
              "product_id": "5"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 zlib 1.2.13-2 as a component of CBL Mariner 2.0",
          "product_id": "17086-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 mariadb-connector-c 3.1.10-6 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 rubygem-mini_portile2 2.8.0-1 as a component of CBL Mariner 2.0",
          "product_id": "17086-3"
        },
        "product_reference": "3",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 rubygem-mini_portile2 2.8.4-1 as a component of Azure Linux 3.0",
          "product_id": "17084-4"
        },
        "product_reference": "4",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 teckit 2.5.12-4 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": "azl3 teckit 2.5.12-4 as a component of Azure Linux 3.0",
          "product_id": "16825-17084"
        },
        "product_reference": "16825",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 fltk 1.3.8-1 as a component of Azure Linux 3.0",
          "product_id": "17084-6"
        },
        "product_reference": "6",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 fltk 1.3.8-1 as a component of Azure Linux 3.0",
          "product_id": "16826-17084"
        },
        "product_reference": "16826",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 zlib 1.3.1-1 as a component of Azure Linux 3.0",
          "product_id": "17084-5"
        },
        "product_reference": "5",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-6992",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "17086-1",
            "17086-2",
            "17086-3",
            "17084-4",
            "17084-5"
          ]
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "cloudflare",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "16825-17084",
          "16826-17084"
        ],
        "known_affected": [
          "17084-7",
          "17084-6"
        ],
        "known_not_affected": [
          "17086-1",
          "17086-2",
          "17086-3",
          "17084-4",
          "17084-5"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-6992 Memory corruption issues is Cloudflare zlib implementation - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2023-6992.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-03-14T00:00:00.000Z",
          "details": "2.5.12-4:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-7"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2025-03-14T00:00:00.000Z",
          "details": "1.3.8-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-6"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 4.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 4.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "17084-7",
            "17084-6"
          ]
        }
      ],
      "title": "Memory corruption issues is Cloudflare zlib implementation"
    }
  ]
}


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