CVE-2013-7440 (GCVE-0-2013-7440)

Vulnerability from cvelistv5 – Published: 2016-06-07 18:00 – Updated: 2024-08-06 18:09
VLAI
Summary
The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1042 records in the last 180 days details
References
URL Tags
http://seclists.org/oss-sec/2015/q2/483 mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2016:1166 vendor-advisoryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=1224999 x_refsource_CONFIRM
https://hg.python.org/cpython/rev/10d0edadbcdd x_refsource_CONFIRM
https://bugs.python.org/issue17997 x_refsource_CONFIRM
http://www.securityfocus.com/bid/74707 vdb-entryx_refsource_BID
http://seclists.org/oss-sec/2015/q2/523 mailing-listx_refsource_MLIST
Date Public
2013-08-12 00:00
Show details on NVD website
To clipboard 

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                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate."
          },
          {
            "lang": "es",
            "value": "La funci\u00f3n ssl.match_hostname en CPython (tambi\u00e9n concida como Python) en versiones anteriores a 2.7.9 y 3.x en versiones anteriores a 3.3.3 no maneja correctamente comodines en los nombres de host, lo que podr\u00eda permitir a atacantes man-in-the-middle suplantar servidores a trav\u00e9s de un certificado manipulado."
          }
        ],
        "id": "CVE-2013-7440",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                "version": "3.0"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-06-07T18:59:00.120",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://seclists.org/oss-sec/2015/q2/483"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://seclists.org/oss-sec/2015/q2/523"
          },
          {
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            "url": "http://www.securityfocus.com/bid/74707"
          },
          {
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            "url": "https://access.redhat.com/errata/RHSA-2016:1166"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://bugs.python.org/issue17997"
          },
          {
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1224999"
          },
          {
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          },
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            "url": "http://seclists.org/oss-sec/2015/q2/483"
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            "url": "http://seclists.org/oss-sec/2015/q2/523"
          },
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            "url": "http://www.securityfocus.com/bid/74707"
          },
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          },
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          },
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1224999"
          },
          {
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            "url": "https://hg.python.org/cpython/rev/10d0edadbcdd"
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        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-19"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-10-07T00:57:24+00:00",
      "cve": "CVE-2013-7440",
      "id": "CVE-2013-7440",
      "initial_release_date": "2013-08-12T00:00:00+00:00",
      "product_status:fixed": "280",
      "product_status:known_affected": "30",
      "product_status:known_not_affected": "1872",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "python: wildcard matching rules do not follow RFC 6125",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-7440.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-05T01:28:42Z",
      "cve": "CVE-2013-7440",
      "id": "CVE-2013-7440",
      "initial_release_date": "2023-02-15T05:33:11Z",
      "product_status:recommended": "25",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2013-7440",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2013-7440.json",
      "version": "8"
    }
  }
}



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