FKIE_CVE-2016-3947

Vulnerability from fkie_nvd - Published: 2016-04-07 18:59 - Updated: 2026-06-17 00:46
Severity
8.2 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Summary
Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger utility in Squid before 3.5.16 and 4.x before 4.0.8 allows remote servers to cause a denial of service (performance degradation or transition failures) or write sensitive information to log files via an ICMPv6 packet.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
cve@mitre.orghttp://www.securitytracker.com/id/1035457
cve@mitre.orghttp://www.squid-cache.org/Advisories/SQUID-2016_3.txtVendor Advisory
cve@mitre.orghttp://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10495.patchPatch
cve@mitre.orghttp://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11839.patchPatch, Third Party Advisory, US Government Resource
cve@mitre.orghttp://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12694.patchPatch
cve@mitre.orghttp://www.squid-cache.org/Versions/v3/3.4/changesets/squid-3.4-13232.patchPatch
cve@mitre.orghttp://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14015.patchPatch
cve@mitre.orghttp://www.ubuntu.com/usn/USN-2995-1
cve@mitre.orghttps://security.gentoo.org/glsa/201607-01
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1035457
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Advisories/SQUID-2016_3.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10495.patchPatch
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11839.patchPatch, Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12694.patchPatch
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Versions/v3/3.4/changesets/squid-3.4-13232.patchPatch
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14015.patchPatch
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2995-1
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201607-01
Impacted products
Vendor Product Version
squid-cache squid *
squid-cache squid 4.0.1
squid-cache squid 4.0.2
squid-cache squid 4.0.3
squid-cache squid 4.0.4
squid-cache squid 4.0.5
squid-cache squid 4.0.6
squid-cache squid 4.0.7
canonical ubuntu_linux 12.04
canonical ubuntu_linux 14.04
canonical ubuntu_linux 15.10
canonical ubuntu_linux 16.04
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "ADA9BDAD-E02B-497D-8793-BE99D3C5623F",
              "versionEndIncluding": "3.5.15",
              "vulnerable": true
            },
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              "matchCriteriaId": "060FCBEA-DEAA-42FB-88C9-4B78136B172F",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "74987102-8CA8-4120-B686-F18579A96A46",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "DA7828AA-48B6-44CD-8507-345A4F0A25BC",
              "vulnerable": true
            },
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              "matchCriteriaId": "6640F25F-CC8B-4B05-A97A-2186BD0B5ED8",
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              "vulnerable": true
            },
            {
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              "matchCriteriaId": "1DDEB455-F082-44E4-8CEA-019C0084BF05",
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
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              "vulnerable": true
            },
            {
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger utility in Squid before 3.5.16 and 4.x before 4.0.8 allows remote servers to cause a denial of service (performance degradation or transition failures) or write sensitive information to log files via an ICMPv6 packet."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de buffer basado en memoria din\u00e1mica en la funci\u00f3n Icmp6::Recv en icmp/Icmp6.cc en la utilidad pinger en Squid en versiones anteriores a 3.5.16 y 4.x en versiones anteriores a 4.0.8 permite a servidores remotos provocar una denegaci\u00f3n de servicio (degradaci\u00f3n de rendimiento o fallos de transici\u00f3n) o escribir informaci\u00f3n sensible en archivos de registro a trav\u00e9s de un paquete ICMPv6."
    }
  ],
  "id": "CVE-2016-3947",
  "lastModified": "2026-06-17T00:46:36.943",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-04-07T18:59:00.137",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securitytracker.com/id/1035457"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.squid-cache.org/Advisories/SQUID-2016_3.txt"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10495.patch"
    },
    {
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      "tags": [
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        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11839.patch"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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    },
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      "source": "cve@mitre.org",
      "tags": [
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    },
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    },
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      "url": "http://www.ubuntu.com/usn/USN-2995-1"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://security.gentoo.org/glsa/201607-01"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html"
    },
    {
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    {
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    },
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      "url": "https://security.gentoo.org/glsa/201607-01"
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "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.