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CVE-2013-2099 (GCVE-0-2013-2099)

Vulnerability from cvelistv5 – Published: 2013-10-09 14:44 – Updated: 2024-08-06 15:27
VLAI
Summary
Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://bugzilla.redhat.com/show_bug.cgi?id=963260 x_refsource_MISC
http://www.ubuntu.com/usn/USN-1984-1 vendor-advisoryx_refsource_UBUNTU
http://secunia.com/advisories/55116 third-party-advisoryx_refsource_SECUNIA
https://access.redhat.com/errata/RHSA-2016:1166 vendor-advisoryx_refsource_REDHAT
http://www.ubuntu.com/usn/USN-1985-1 vendor-advisoryx_refsource_UBUNTU
http://bugs.python.org/issue17980 x_refsource_CONFIRM
http://secunia.com/advisories/55107 third-party-advisoryx_refsource_SECUNIA
http://rhn.redhat.com/errata/RHSA-2014-1690.html vendor-advisoryx_refsource_REDHAT
http://www.ubuntu.com/usn/USN-1983-1 vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2013/05/16/6 mailing-listx_refsource_MLIST
Date Public
2013-05-15 00:00
Show details on NVD website
To clipboard 

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            "url": "http://bugs.python.org/issue17980"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://rhn.redhat.com/errata/RHSA-2014-1690.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/55107"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/55116"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openwall.com/lists/oss-security/2013/05/16/6"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-1983-1"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-1984-1"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-1985-1"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://access.redhat.com/errata/RHSA-2016:1166"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=963260"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "http://bugs.python.org/issue17980"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://rhn.redhat.com/errata/RHSA-2014-1690.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/55107"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/55116"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.openwall.com/lists/oss-security/2013/05/16/6"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1983-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1984-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1985-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2016:1166"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=963260"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-399"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T11:52:10+00:00",
      "cve": "CVE-2013-2099",
      "id": "CVE-2013-2099",
      "initial_release_date": "2013-05-15T00:00:00+00:00",
      "product_status:fixed": "1458",
      "product_status:known_affected": "13",
      "product_status:known_not_affected": "39",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "python: ssl.match_hostname() DoS via certificates with specially crafted hostname wildcard patterns",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-2099.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2023-12-08T04:57:03Z",
      "cve": "CVE-2013-2099",
      "id": "CVE-2013-2099",
      "initial_release_date": "2023-02-15T05:39:10Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2013-2099",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2013-2099.json",
      "version": "3"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.