CVE-2013-4207 (GCVE-0-2013-4207)

Vulnerability from cvelistv5 – Published: 2013-08-19 23:00 – Updated: 2024-08-06 16:38
VLAI
Summary
Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1045 records in the last 180 days details
References
URL Tags
http://www.openwall.com/lists/oss-security/2013/0… mailing-listx_refsource_MLIST
http://secunia.com/advisories/54533 third-party-advisoryx_refsource_SECUNIA
http://www.debian.org/security/2013/dsa-2736 vendor-advisoryx_refsource_DEBIAN
http://lists.opensuse.org/opensuse-updates/2013-0… vendor-advisoryx_refsource_SUSE
http://www.chiark.greenend.org.uk/~sgtatham/putty… x_refsource_CONFIRM
http://secunia.com/advisories/54379 third-party-advisoryx_refsource_SECUNIA
Date Public
2013-08-05 00:00
Show details on NVD website
To clipboard 

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                    "matchCriteriaId": "820B9CC0-2A18-4357-B01F-565A0E35E275",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:simon_tatham:putty:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3A8E4288-5CEA-42F3-BF6A-FE7D78C907C0",
                    "versionEndIncluding": "0.62",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:simon_tatham:putty:0.53:*:*:*:*:*:*:*",
                    "matchCriteriaId": "129133D1-B374-4743-9F52-27D0A9558D17",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206."
          },
          {
            "lang": "es",
            "value": "Desbordamiento de b\u00fafer  en PuTTY 0.62 y anteriores, permite a servidores SSH remotos provocar una denegaci\u00f3n de servicio (ca\u00edda) a trav\u00e9s de una firma DSA no v\u00e1lida que no es manejada adecuadamente durante el c\u00e1lculo de un inverso modular que provoca el desbordamiento durante una divisi\u00f3n entre cero por la funcionalidad \"bignum\". Vulnerabilidad distinta de CVE-2013-4206."
          }
        ],
        "id": "CVE-2013-4207",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2013-08-19T23:55:08.767",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/54379"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/54533"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.debian.org/security/2013/dsa-2736"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openwall.com/lists/oss-security/2013/08/06/11"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/54379"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/54533"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.debian.org/security/2013/dsa-2736"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.openwall.com/lists/oss-security/2013/08/06/11"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-119"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-06-27T12:05:04+00:00",
      "cve": "CVE-2013-4207",
      "id": "CVE-2013-4207",
      "initial_release_date": "2013-07-15T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "putty: Integer overflow, leading to heap-based buffer overflow during SSH handshake",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-4207.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2025-03-16T12:43:42Z",
      "cve": "CVE-2013-4207",
      "id": "CVE-2013-4207",
      "initial_release_date": "2023-02-15T05:36:34Z",
      "product_status:recommended": "2",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2013-4207",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2013-4207.json",
      "version": "4"
    }
  }
}



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