FKIE_CVE-2020-26575

Vulnerability from fkie_nvd - Published: 2020-10-06 15:15 - Updated: 2026-06-17 03:08
Summary
In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.
References
cve@mitre.orghttps://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10abPatch, Third Party Advisory
cve@mitre.orghttps://gitlab.com/wireshark/wireshark/-/issues/16887Broken Link
cve@mitre.orghttps://gitlab.com/wireshark/wireshark/-/merge_requests/467Patch, Third Party Advisory
cve@mitre.orghttps://gitlab.com/wireshark/wireshark/-/merge_requests/471Patch, Third Party Advisory
cve@mitre.orghttps://gitlab.com/wireshark/wireshark/-/merge_requests/472Patch, Third Party Advisory
cve@mitre.orghttps://gitlab.com/wireshark/wireshark/-/merge_requests/473Patch, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2667E6WKVE56G66BVBVD7LJPIDOJ7K3/
cve@mitre.orghttps://security.gentoo.org/glsa/202011-08Third Party Advisory
cve@mitre.orghttps://www.oracle.com/security-alerts/cpujan2021.htmlThird Party Advisory
cve@mitre.orghttps://www.wireshark.org/security/wnpa-sec-2020-14.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10abPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/wireshark/wireshark/-/issues/16887Broken Link
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/wireshark/wireshark/-/merge_requests/467Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/wireshark/wireshark/-/merge_requests/471Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/wireshark/wireshark/-/merge_requests/472Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/wireshark/wireshark/-/merge_requests/473Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2667E6WKVE56G66BVBVD7LJPIDOJ7K3/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202011-08Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujan2021.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.wireshark.org/security/wnpa-sec-2020-14.htmlVendor Advisory

{
  "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:wireshark:wireshark:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E1F39650-692D-4C46-B8EE-562776D6FA83",
              "versionEndIncluding": "3.2.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
              "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
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          "cpeMatch": [
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              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:oracle:zfs_storage_appliance_firmware:8.8:*:*:*:*:*:*:*",
              "matchCriteriaId": "9DFA9ECF-AA1E-440C-A445-F2A21C94FCEA",
              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
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              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement."
    },
    {
      "lang": "es",
      "value": "En Wireshark versiones hasta 3.2.7, el Facebook Zero Protocol (tambi\u00e9n se conoce como FBZERO), podr\u00eda entrar en un bucle infinito.\u0026#xa0;Esto fue abordado en el archivo epan/dissectors/packet-fbzero.c corrigiendo la implementaci\u00f3n del avance de compensaci\u00f3n"
    }
  ],
  "id": "CVE-2020-26575",
  "lastModified": "2026-06-17T03:08:13.763",
  "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": "2020-10-06T15:15:15.553",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10ab"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "https://gitlab.com/wireshark/wireshark/-/issues/16887"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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    },
    {
      "source": "cve@mitre.org",
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      ],
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    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2667E6WKVE56G66BVBVD7LJPIDOJ7K3/"
    },
    {
      "source": "cve@mitre.org",
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      ],
      "url": "https://security.gentoo.org/glsa/202011-08"
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    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "https://www.wireshark.org/security/wnpa-sec-2020-14.html"
    },
    {
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://gitlab.com/wireshark/wireshark/-/issues/16887"
    },
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    },
    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/"
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    {
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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