gsd-2021-3935
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
When PgBouncer is configured to use "cert" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.
Aliases
Aliases
CVE-2021-3935


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-3935",
    "description": "When PgBouncer is configured to use \"cert\" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.",
    "id": "GSD-2021-3935",
    "references": [
      "https://security.archlinux.org/CVE-2021-3935"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3935"
      ],
      "details": "When PgBouncer is configured to use \"cert\" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.",
      "id": "GSD-2021-3935",
      "modified": "2023-12-13T01:23:35.111914Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "patrick@puiterwijk.org",
        "ID": "CVE-2021-3935",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "pgbouncer",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "PgBouncer 1.16.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
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      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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          }
        ]
      },
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      "references": {
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          {
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            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2021251"
          },
          {
            "name": "http://www.pgbouncer.org/changelog.html#pgbouncer-116x",
            "refsource": "MISC",
            "url": "http://www.pgbouncer.org/changelog.html#pgbouncer-116x"
          },
          {
            "name": "FEDORA-2021-761cda0b77",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TNPCV3KRDI5PLLLKADFVIOHACQJLZMLI/"
          },
          {
            "name": "[debian-lts-announce] 20220214 [SECURITY] [DLA 2922-1] pgbouncer security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00016.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
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                "cpe23Uri": "cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.16.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
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          "ID": "CVE-2021-3935"
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-295"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2021251",
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2021251"
            },
            {
              "name": "http://www.pgbouncer.org/changelog.html#pgbouncer-116x",
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              "tags": [
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              ],
              "url": "http://www.pgbouncer.org/changelog.html#pgbouncer-116x"
            },
            {
              "name": "FEDORA-2021-761cda0b77",
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            },
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          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 4.9,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-06-26T19:15Z",
      "publishedDate": "2021-11-22T16:15Z"
    }
  }
}


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