CVE-2012-4643 (GCVE-0-2012-4643)

Vulnerability from cvelistv5 – Published: 2012-10-29 20:00 – Updated: 2024-08-06 20:42
VLAI
Summary
The DHCP server on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 7.0 before 7.2(5.8), 7.1 before 7.2(5.8), 7.2 before 7.2(5.8), 8.0 before 8.0(5.28), 8.1 before 8.1(2.56), 8.2 before 8.2(5.27), 8.3 before 8.3(2.31), 8.4 before 8.4(3.10), 8.5 before 8.5(1.9), and 8.6 before 8.6(1.5) does not properly allocate memory for DHCP packets, which allows remote attackers to cause a denial of service (device reload) via a series of crafted IPv4 packets, aka Bug ID CSCtw84068.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://www.securityfocus.com/bid/55861 vdb-entryx_refsource_BID
http://tools.cisco.com/security/center/content/Ci… vendor-advisoryx_refsource_CISCO
http://osvdb.org/86145 vdb-entryx_refsource_OSVDB
Date Public
2012-10-10 00:00
Show details on NVD website
To clipboard 

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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The DHCP server on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 7.0 before 7.2(5.8), 7.1 before 7.2(5.8), 7.2 before 7.2(5.8), 8.0 before 8.0(5.28), 8.1 before 8.1(2.56), 8.2 before 8.2(5.27), 8.3 before 8.3(2.31), 8.4 before 8.4(3.10), 8.5 before 8.5(1.9), and 8.6 before 8.6(1.5) does not properly allocate memory for DHCP packets, which allows remote attackers to cause a denial of service (device reload) via a series of crafted IPv4 packets, aka Bug ID CSCtw84068."
        },
        {
          "lang": "es",
          "value": "El servidor DHCP en dispositivos Cisco de las series Adaptive Security Appliances (ASA) 5500, y ASA Services Module (ASASM) en dispositivos Cisco de la serie Catalyst 6500, con software v7.0 anterior a v7.2(5.8), v7.1 anterior a v7.2(5.8), v7.2 anterior a v7.2(5.8), v8.0 anterior a v8.0(5.28), v8.1 anterior a v8.1(2.56), v8.2 anterior a v8.2(5.27), v8.3 anterior a v8.3(2.31), v8.4 anterior a v8.4(3.10), v8.5 anterior a v8.5(1.9), y v8.6 anterior a v8.6(1.5) no posiciona en memoria de forma adecuada los paquetes DHCP, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (recarga de dispositivo) a trav\u00e9s de una serie de paquetes IPv4 manipulados, tambi\u00e9n conocido como Bus ID CSCtw84068."
        }
      ],
      "id": "CVE-2012-4643",
      "lastModified": "2024-11-21T01:43:17.290",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "HIGH",
            "cvssData": {
              "accessComplexity": "MEDIUM",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "COMPLETE",
              "baseScore": 7.1,
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
              "version": "2.0"
            },
            "exploitabilityScore": 8.6,
            "impactScore": 6.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ]
      },
      "published": "2012-10-29T20:55:01.103",
      "references": [
        {
          "source": "ykramarz@cisco.com",
          "url": "http://osvdb.org/86145"
        },
        {
          "source": "ykramarz@cisco.com",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20121010-asa"
        },
        {
          "source": "ykramarz@cisco.com",
          "url": "http://www.securityfocus.com/bid/55861"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://osvdb.org/86145"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20121010-asa"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.securityfocus.com/bid/55861"
        }
      ],
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-399"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
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                  {
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                    "matchCriteriaId": "4154E951-DE5D-4D48-B5BA-B3CCDDA3FBA2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:8.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2BFCE154-6582-49E2-9B9D-641986B7D653",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:8.6\\(1\\):*:*:*:*:*:*:*",
                    "matchCriteriaId": "563181F6-6A37-496B-AE25-0D03214BA7BD",
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                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:cisco:5500_series_adaptive_security_appliance:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9CB79D96-75EA-4B4F-99A7-9AB4158B7301",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:h:cisco:catalyst_6500:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "99DE48DF-A309-4A1C-B977-AE81B4EDB589",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:h:cisco:catalyst_6503-e:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F202892E-2E58-4D77-B983-38AFA51CDBC6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:h:cisco:catalyst_6504-e:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7F57DF3E-4069-4EF0-917E-84CDDFCEBEEF",
                    "vulnerable": true
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                  },
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                    "matchCriteriaId": "4AFF899C-1EB3-46D8-9003-EA36A68C90B3",
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                  },
                  {
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                    "vulnerable": true
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                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The DHCP server on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 7.0 before 7.2(5.8), 7.1 before 7.2(5.8), 7.2 before 7.2(5.8), 8.0 before 8.0(5.28), 8.1 before 8.1(2.56), 8.2 before 8.2(5.27), 8.3 before 8.3(2.31), 8.4 before 8.4(3.10), 8.5 before 8.5(1.9), and 8.6 before 8.6(1.5) does not properly allocate memory for DHCP packets, which allows remote attackers to cause a denial of service (device reload) via a series of crafted IPv4 packets, aka Bug ID CSCtw84068."
          },
          {
            "lang": "es",
            "value": "El servidor DHCP en dispositivos Cisco de las series Adaptive Security Appliances (ASA) 5500, y ASA Services Module (ASASM) en dispositivos Cisco de la serie Catalyst 6500, con software v7.0 anterior a v7.2(5.8), v7.1 anterior a v7.2(5.8), v7.2 anterior a v7.2(5.8), v8.0 anterior a v8.0(5.28), v8.1 anterior a v8.1(2.56), v8.2 anterior a v8.2(5.27), v8.3 anterior a v8.3(2.31), v8.4 anterior a v8.4(3.10), v8.5 anterior a v8.5(1.9), y v8.6 anterior a v8.6(1.5) no posiciona en memoria de forma adecuada los paquetes DHCP, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (recarga de dispositivo) a trav\u00e9s de una serie de paquetes IPv4 manipulados, tambi\u00e9n conocido como Bus ID CSCtw84068."
          }
        ],
        "id": "CVE-2012-4643",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 7.1,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 6.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2012-10-29T20:55:01.103",
        "references": [
          {
            "source": "psirt@cisco.com",
            "url": "http://osvdb.org/86145"
          },
          {
            "source": "psirt@cisco.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20121010-asa"
          },
          {
            "source": "psirt@cisco.com",
            "url": "http://www.securityfocus.com/bid/55861"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://osvdb.org/86145"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20121010-asa"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/55861"
          }
        ],
        "sourceIdentifier": "psirt@cisco.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-399"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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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.



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.