FKIE_CVE-2013-4207

Vulnerability from fkie_nvd - Published: 2013-08-19 23:55 - Updated: 2025-04-11 00:51
Severity ?
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.
References
secalert@redhat.comhttp://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
secalert@redhat.comhttp://secunia.com/advisories/54379Vendor Advisory
secalert@redhat.comhttp://secunia.com/advisories/54533
secalert@redhat.comhttp://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.htmlVendor Advisory
secalert@redhat.comhttp://www.debian.org/security/2013/dsa-2736
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2013/08/06/11
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/54379Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/54533
af854a3a-2127-422b-91ae-364da2661108http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2013/dsa-2736
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2013/08/06/11
Impacted products
Vendor Product Version
putty putty 0.45
putty putty 0.46
putty putty 0.47
putty putty 0.48
putty putty 0.49
putty putty 0.50
putty putty 0.51
putty putty 0.52
putty putty 0.53b
putty putty 0.54
putty putty 0.55
putty putty 0.56
putty putty 0.57
putty putty 0.58
putty putty 0.59
putty putty 0.60
putty putty 0.61
putty putty 2010-06-01
simon_tatham putty *
simon_tatham putty 0.53
To clipboard 

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  "cveTags": [],
  "descriptions": [
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      "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."
    }
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  "id": "CVE-2013-4207",
  "lastModified": "2025-04-11T00:51:21.963",
  "metrics": {
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        "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"
        },
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        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
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  "published": "2013-08-19T23:55:08.767",
  "references": [
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      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"
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      "source": "secalert@redhat.com",
      "tags": [
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      "url": "http://secunia.com/advisories/54533"
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      "tags": [
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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