Vulnerability-Lookup

FKIE_CVE-2020-8037

Vulnerability from fkie_nvd - Published: 2020-11-04 18:15 - Updated: 2026-06-17 03:25

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory.

References

URL	Tags
security@tcpdump.org	http://seclists.org/fulldisclosure/2021/Apr/51	Mailing List, Third Party Advisory
security@tcpdump.org	https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231	Patch, Third Party Advisory
security@tcpdump.org	https://lists.debian.org/debian-lts-announce/2020/11/msg00018.html	Mailing List, Third Party Advisory
security@tcpdump.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKFOOOC3CJ4Z/
security@tcpdump.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWDBONZVLC6BAOR2KM376DJCM4H3FERV/
security@tcpdump.org	https://support.apple.com/kb/HT212325	Third Party Advisory
security@tcpdump.org	https://support.apple.com/kb/HT212326	Third Party Advisory
security@tcpdump.org	https://support.apple.com/kb/HT212327	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://seclists.org/fulldisclosure/2021/Apr/51	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2020/11/msg00018.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKFOOOC3CJ4Z/
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWDBONZVLC6BAOR2KM376DJCM4H3FERV/
af854a3a-2127-422b-91ae-364da2661108	https://support.apple.com/kb/HT212325	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://support.apple.com/kb/HT212326	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://support.apple.com/kb/HT212327	Third Party Advisory

Impacted products

Vendor	Product	Version
tcpdump	tcpdump	4.9.3
debian	debian_linux	9.0
fedoraproject	fedora	32
fedoraproject	fedora	33
apple	mac_os_x	*
apple	mac_os_x	*
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.14.6
apple	mac_os_x	10.15.7
apple	mac_os_x	10.15.7
apple	mac_os_x	10.15.7
apple	mac_os_x	10.15.7
apple	macos	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "tcpdump",
          "vendor": "The TCPdump Group",
          "versions": [
            {
              "status": "affected",
              "version": "4.9.3"
            }
          ]
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      ],
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    }
  ],
  "configurations": [
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        {
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory."
    },
    {
      "lang": "es",
      "value": "El ppp decapsulator en tcpdump versi\u00f3n 4.9.3 puede ser convencido para que asigne una gran cantidad de memoria"
    }
  ],
  "id": "CVE-2020-8037",
  "lastModified": "2026-06-17T03:25:50.133",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-11-04T18:15:20.843",
  "references": [
    {
      "source": "security@tcpdump.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://seclists.org/fulldisclosure/2021/Apr/51"
    },
    {
      "source": "security@tcpdump.org",
      "tags": [
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        "Third Party Advisory"
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    },
    {
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        "Third Party Advisory"
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    },
    {
      "source": "security@tcpdump.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKFOOOC3CJ4Z/"
    },
    {
      "source": "security@tcpdump.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWDBONZVLC6BAOR2KM376DJCM4H3FERV/"
    },
    {
      "source": "security@tcpdump.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://support.apple.com/kb/HT212325"
    },
    {
      "source": "security@tcpdump.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://support.apple.com/kb/HT212326"
    },
    {
      "source": "security@tcpdump.org",
      "tags": [
        "Third Party Advisory"
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      "url": "https://support.apple.com/kb/HT212327"
    },
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        "Third Party Advisory"
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      "url": "http://seclists.org/fulldisclosure/2021/Apr/51"
    },
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      "tags": [
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    },
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKFOOOC3CJ4Z/"
    },
    {
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    },
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      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://support.apple.com/kb/HT212327"
    }
  ],
  "sourceIdentifier": "security@tcpdump.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-8037 (GCVE-0-2020-8037)

Vulnerability from cvelistv5 – Published: 2020-11-04 17:55 – Updated: 2024-09-16 20:27

Title

ppp decapsulator can be convinced to allocate a large amount of memory

Summary

The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory.

Severity

No CVSS data available.

CWE

memory overallocation error

Assigner

Tcpdump mitre root

References

8 references

URL	Tags
https://github.com/the-tcpdump-group/tcpdump/comm…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://seclists.org/fulldisclosure/2021/Apr/51	mailing-listx_refsource_FULLDISC
https://support.apple.com/kb/HT212325	x_refsource_CONFIRM
https://support.apple.com/kb/HT212326	x_refsource_CONFIRM
https://support.apple.com/kb/HT212327	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
The TCPdump Group	tcpdump	Affected: 4.9.3

Date Public

2020-04-21 00:00

Credits

Hardik Shah

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T09:48:25.625Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231"
          },
          {
            "name": "[debian-lts-announce] 20201110 [SECURITY] [DLA 2444-1] tcpdump security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00018.html"
          },
          {
            "name": "FEDORA-2020-fae2e1f2bc",
            "tags": [
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              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWDBONZVLC6BAOR2KM376DJCM4H3FERV/"
          },
          {
            "name": "FEDORA-2020-c5e78886d6",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKFOOOC3CJ4Z/"
          },
          {
            "name": "20210427 APPLE-SA-2021-04-26-3 Security Update 2021-002 Catalina",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2021/Apr/51"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT212325"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT212326"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT212327"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "tcpdump",
          "vendor": "The TCPdump Group",
          "versions": [
            {
              "status": "affected",
              "version": "4.9.3"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Hardik Shah"
        }
      ],
      "datePublic": "2020-04-21T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "memory overallocation error",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-23T19:30:45.000Z",
        "orgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
        "shortName": "Tcpdump"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231"
        },
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          "tags": [
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            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00018.html"
        },
        {
          "name": "FEDORA-2020-fae2e1f2bc",
          "tags": [
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            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWDBONZVLC6BAOR2KM376DJCM4H3FERV/"
        },
        {
          "name": "FEDORA-2020-c5e78886d6",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKFOOOC3CJ4Z/"
        },
        {
          "name": "20210427 APPLE-SA-2021-04-26-3 Security Update 2021-002 Catalina",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2021/Apr/51"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/kb/HT212325"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/kb/HT212326"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/kb/HT212327"
        }
      ],
      "title": "ppp decapsulator can be convinced to allocate a large amount of memory",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@tcpdump.org",
          "DATE_PUBLIC": "2020-04-21T00:00:00.000Z",
          "ID": "CVE-2020-8037",
          "STATE": "PUBLIC",
          "TITLE": "ppp decapsulator can be convinced to allocate a large amount of memory"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "tcpdump",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "4.9.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "The TCPdump Group"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Hardik Shah"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "memory overallocation error"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231",
              "refsource": "MISC",
              "url": "https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231"
            },
            {
              "name": "[debian-lts-announce] 20201110 [SECURITY] [DLA 2444-1] tcpdump security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00018.html"
            },
            {
              "name": "FEDORA-2020-fae2e1f2bc",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LWDBONZVLC6BAOR2KM376DJCM4H3FERV/"
            },
            {
              "name": "FEDORA-2020-c5e78886d6",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKFOOOC3CJ4Z/"
            },
            {
              "name": "20210427 APPLE-SA-2021-04-26-3 Security Update 2021-002 Catalina",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2021/Apr/51"
            },
            {
              "name": "https://support.apple.com/kb/HT212325",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT212325"
            },
            {
              "name": "https://support.apple.com/kb/HT212326",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT212326"
            },
            {
              "name": "https://support.apple.com/kb/HT212327",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT212327"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
    "assignerShortName": "Tcpdump",
    "cveId": "CVE-2020-8037",
    "datePublished": "2020-11-04T17:55:21.657Z",
    "dateReserved": "2020-01-27T00:00:00.000Z",
    "dateUpdated": "2024-09-16T20:27:55.571Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

FKIE_CVE-2020-8037

CVE-2020-8037 (GCVE-0-2020-8037)

Tags

Sightings

Nomenclature

Related by attack behaviour