gsd-2013-4206
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.
Aliases
Aliases
CVE-2013-4206


To clipboard 

{
  "GSD": {
    "alias": "CVE-2013-4206",
    "description": "Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.",
    "id": "GSD-2013-4206",
    "references": [
      "https://www.suse.com/security/cve/CVE-2013-4206.html",
      "https://www.debian.org/security/2013/dsa-2736",
      "https://advisories.mageia.org/CVE-2013-4206.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2013-4206"
      ],
      "details": "Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.",
      "id": "GSD-2013-4206",
      "modified": "2023-12-13T01:22:16.419206Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2013-4206",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
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                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
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          }
        ]
      },
      "problemtype": {
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              {
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                "value": "n/a"
              }
            ]
          }
        ]
      },
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          {
            "name": "[oss-security] 20130806 CVE request: three additional flaws fixed in putty 0.63",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2013/08/06/11"
          },
          {
            "name": "54533",
            "refsource": "SECUNIA",
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          },
          {
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            "refsource": "CONFIRM",
            "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html"
          },
          {
            "name": "DSA-2736",
            "refsource": "DEBIAN",
            "url": "http://www.debian.org/security/2013/dsa-2736"
          },
          {
            "name": "openSUSE-SU-2013:1347",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"
          },
          {
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          },
          {
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          }
        ]
      }
    },
    "nvd.nist.gov": {
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                "cpe_name": [],
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            ],
            "operator": "OR"
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        ]
      },
      "cve": {
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          "ID": "CVE-2013-4206"
        },
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        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
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            {
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                  "value": "CWE-119"
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        },
        "references": {
          "reference_data": [
            {
              "name": "DSA-2736",
              "refsource": "DEBIAN",
              "tags": [],
              "url": "http://www.debian.org/security/2013/dsa-2736"
            },
            {
              "name": "[oss-security] 20130806 CVE request: three additional flaws fixed in putty 0.63",
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              "url": "http://www.openwall.com/lists/oss-security/2013/08/06/11"
            },
            {
              "name": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html",
              "refsource": "CONFIRM",
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            },
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            {
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              "url": "http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date\u0026r1=9977\u0026r2=9976\u0026pathrev=9977"
            },
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            },
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              "url": "http://secunia.com/advisories/54533"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2021-08-06T16:58Z",
      "publishedDate": "2013-08-19T23:55Z"
    }
  }
}


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