Vulnerability-Lookup

FKIE_CVE-2016-6271

Vulnerability from fkie_nvd - Published: 2017-01-18 22:59 - Updated: 2026-06-17 00:50

Severity

7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

The Bzrtp library (aka libbzrtp) 1.0.x before 1.0.4 allows man-in-the-middle attackers to conduct spoofing attacks by leveraging a missing HVI check on DHPart2 packet reception.

References

URL	Tags
cve@mitre.org	http://www.securityfocus.com/bid/95928
cve@mitre.org	https://github.com/BelledonneCommunications/bzrtp/commit/bbb1e6e2f467ee4bd7b9a8c800e4f07343d7d99b	Issue Tracking, Patch
cve@mitre.org	https://github.com/gteissier/CVE-2016-6271
af854a3a-2127-422b-91ae-364da2661108	http://www.securityfocus.com/bid/95928
af854a3a-2127-422b-91ae-364da2661108	https://github.com/BelledonneCommunications/bzrtp/commit/bbb1e6e2f467ee4bd7b9a8c800e4f07343d7d99b	Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/gteissier/CVE-2016-6271

Impacted products

Vendor	Product	Version
bzrtp_project	bzrtp	1.0.0
bzrtp_project	bzrtp	1.0.2
bzrtp_project	bzrtp	1.0.3

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:bzrtp_project:bzrtp:1.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "9536042E-1DA6-4971-85BA-E99A73F877A1",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "27EC44AF-7082-4DF3-8ED1-9B380BE2EBDB",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "D470019E-5647-4D3F-A70D-DC19CBD5F588",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Bzrtp library (aka libbzrtp) 1.0.x before 1.0.4 allows man-in-the-middle attackers to conduct spoofing attacks by leveraging a missing HVI check on DHPart2 packet reception."
    },
    {
      "lang": "es",
      "value": "La librer\u00eda Bzrtp (tambi\u00e9n conocida como libbzrtp) 1.0.x en versiones anteriores a 1.0.4 permite a atacantes man-in-the-middle llevar a cabo ataques de suplantaci\u00f3n de identidad aprovechando una comprobaci\u00f3n HVI desaparecida en la recepci\u00f3n de paquetes DHPart2."
    }
  ],
  "id": "CVE-2016-6271",
  "lastModified": "2026-06-17T00:50:44.113",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-01-18T22:59:00.780",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/95928"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/BelledonneCommunications/bzrtp/commit/bbb1e6e2f467ee4bd7b9a8c800e4f07343d7d99b"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/gteissier/CVE-2016-6271"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/95928"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://github.com/BelledonneCommunications/bzrtp/commit/bbb1e6e2f467ee4bd7b9a8c800e4f07343d7d99b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://github.com/gteissier/CVE-2016-6271"
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-254"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2016-6271 (GCVE-0-2016-6271)

Vulnerability from cvelistv5 – Published: 2017-01-18 22:00 – Updated: 2024-08-06 01:22

Summary

The Bzrtp library (aka libbzrtp) 1.0.x before 1.0.4 allows man-in-the-middle attackers to conduct spoofing attacks by leveraging a missing HVI check on DHPart2 packet reception.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
http://www.securityfocus.com/bid/95928	vdb-entryx_refsource_BID
https://github.com/BelledonneCommunications/bzrtp…	x_refsource_CONFIRM
https://github.com/gteissier/CVE-2016-6271	x_refsource_MISC

Date Public

2016-08-06 00:00

Show details on NVD website

JSON

To clipboard

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      "x_legacyV4Record": {
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            "vendor_data": [
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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.

Detection rules are retrieved from Rulezet.

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.