{
  "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-2021-3677 A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0 the known versions of this attack are infeasible. However undiscovered variants of the attack may be independent of that setting. - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2021-3677.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 flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0 the known versions of this attack are infeasible. However undiscovered variants of the attack may be independent of that setting.",
    "tracking": {
      "current_release_date": "2022-03-11T00:00:00.000Z",
      "generator": {
        "date": "2025-10-19T23:23:33.132Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2021-3677",
      "initial_release_date": "2022-03-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2022-03-11T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "1.0",
                "product": {
                  "name": "CBL Mariner 1.0",
                  "product_id": "16820"
                }
              },
              {
                "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": "\u003ccm1 postgresql 12.8-1",
                "product": {
                  "name": "\u003ccm1 postgresql 12.8-1",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "cm1 postgresql 12.8-1",
                "product": {
                  "name": "cm1 postgresql 12.8-1",
                  "product_id": "18896"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 postgresql 14.2-1",
                "product": {
                  "name": "\u003ccbl2 postgresql 14.2-1",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 postgresql 14.2-1",
                "product": {
                  "name": "cbl2 postgresql 14.2-1",
                  "product_id": "18891"
                }
              }
            ],
            "category": "product_name",
            "name": "postgresql"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccm1 postgresql 12.8-1 as a component of CBL Mariner 1.0",
          "product_id": "16820-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cm1 postgresql 12.8-1 as a component of CBL Mariner 1.0",
          "product_id": "18896-16820"
        },
        "product_reference": "18896",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccbl2 postgresql 14.2-1 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 postgresql 14.2-1 as a component of CBL Mariner 2.0",
          "product_id": "18891-17086"
        },
        "product_reference": "18891",
        "relates_to_product_reference": "17086"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-3677",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "notes": [
        {
          "category": "general",
          "text": "redhat",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "18896-16820",
          "18891-17086"
        ],
        "known_affected": [
          "16820-1",
          "17086-2"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2021-3677 A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0 the known versions of this attack are infeasible. However undiscovered variants of the attack may be independent of that setting. - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2021-3677.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-03-11T00:00:00.000Z",
          "details": "12.8-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "16820-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2022-03-11T00:00:00.000Z",
          "details": "14.2-1: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": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "temporalScore": 6.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "16820-1",
            "17086-2"
          ]
        }
      ],
      "title": "A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0 the known versions of this attack are infeasible. However undiscovered variants of the attack may be independent of that setting."
    }
  ]
}