FKIE_CVE-2013-4206

Vulnerability from fkie_nvd - Published: 2013-08-19 23:55 - Updated: 2025-04-11 00:51
Severity ?
Summary
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.
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://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977Patch
secalert@redhat.comhttp://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.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://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977Patch
af854a3a-2127-422b-91ae-364da2661108http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.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 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:putty:putty:0.45:*:*:*:*:*:*:*",
              "matchCriteriaId": "5D5EB349-B1DF-4CF5-9468-37DC66A929C3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.46:*:*:*:*:*:*:*",
              "matchCriteriaId": "CF223411-6FA4-43EC-8668-7DB4A98E4DEA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.47:*:*:*:*:*:*:*",
              "matchCriteriaId": "D0E87C56-DFD9-45D9-9169-3BB94F647F15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.48:*:*:*:*:*:*:*",
              "matchCriteriaId": "1283B462-042C-4857-A700-4179AAE20E2F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.49:*:*:*:*:*:*:*",
              "matchCriteriaId": "2791C9DD-F55D-4683-85AF-B6814C34EFBF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.50:*:*:*:*:*:*:*",
              "matchCriteriaId": "6D7582C1-AA8E-41E4-9D69-9A18A5B76CB0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.51:*:*:*:*:*:*:*",
              "matchCriteriaId": "FC082AE0-C49D-4944-BE76-B751DAD1EF84",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.52:*:*:*:*:*:*:*",
              "matchCriteriaId": "23BAD8E4-2D3A-45EE-A25D-77BD698119BB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.53b:*:*:*:*:*:*:*",
              "matchCriteriaId": "8F7716EC-E0F9-4E50-8351-35D2F248B380",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.54:*:*:*:*:*:*:*",
              "matchCriteriaId": "46C2BD4D-9817-459E-ACF4-9C95233200A2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.55:*:*:*:*:*:*:*",
              "matchCriteriaId": "22EE5957-76F3-4B20-ADE7-E72D1300A3F0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.56:*:*:*:*:*:*:*",
              "matchCriteriaId": "826FA7E4-7F48-4D1C-856C-A965527B0950",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.57:*:*:*:*:*:*:*",
              "matchCriteriaId": "AA54ADC7-2A36-40DA-8219-DAA31509E534",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.58:*:*:*:*:*:*:*",
              "matchCriteriaId": "1A14381E-91A1-4902-B409-1281CFA2D561",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.59:*:*:*:*:*:*:*",
              "matchCriteriaId": "8B33EB10-535F-42F2-8F78-CE128A89447C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.60:*:*:*:*:*:*:*",
              "matchCriteriaId": "218F9EAF-C260-43EC-99C4-EFACA9A1DA8D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:0.61:*:*:*:*:*:*:*",
              "matchCriteriaId": "5966235B-2F1A-45C5-AF65-99FFFE4725DF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:putty:putty:2010-06-01:r8967:*:*:development_snapshot:*:*:*",
              "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": "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."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de b\u00fafer basado en memoria din\u00e1mica  en la funci\u00f3n modmul en sshbn.c en PuTTY 0.62 y anteriores, permite a servidores SSH remotos provocar una denegaci\u00f3n de servicio (ca\u00edda) y posiblemente causar una corrupci\u00f3n de memoria o ejecuci\u00f3n de c\u00f3digo a trav\u00e9s de una firma DSA manipulada que no es manejada adecuadamente cuando se realizan determinadas operaciones de bit-shifting durante una multiplicaci\u00f3n modular."
    }
  ],
  "id": "CVE-2013-4206",
  "lastModified": "2025-04-11T00:51:21.963",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2013-08-19T23:55:08.723",
  "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": [
        "Patch"
      ],
      "url": "http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date\u0026r1=9977\u0026r2=9976\u0026pathrev=9977"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.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": [
        "Patch"
      ],
      "url": "http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date\u0026r1=9977\u0026r2=9976\u0026pathrev=9977"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.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": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.