gsd-2021-39921
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
Aliases
Aliases
CVE-2021-39921


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-39921",
    "description": "NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file",
    "id": "GSD-2021-39921",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-39921.html",
      "https://www.debian.org/security/2021/dsa-5019",
      "https://advisories.mageia.org/CVE-2021-39921.html",
      "https://security.archlinux.org/CVE-2021-39921"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-39921"
      ],
      "details": "NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file",
      "id": "GSD-2021-39921",
      "modified": "2023-12-13T01:23:15.540742Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@gitlab.com",
        "ID": "CVE-2021-39921",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Wireshark",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003e=3.4.0, \u003c3.4.10"
                        },
                        {
                          "version_value": "\u003e=3.2.0, \u003c3.2.18"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Wireshark Foundation"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file"
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Null pointer dereference in Wireshark"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.wireshark.org/security/wnpa-sec-2021-14.html",
            "refsource": "MISC",
            "url": "https://www.wireshark.org/security/wnpa-sec-2021-14.html"
          },
          {
            "name": "https://gitlab.com/wireshark/wireshark/-/issues/17703",
            "refsource": "MISC",
            "url": "https://gitlab.com/wireshark/wireshark/-/issues/17703"
          },
          {
            "name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json",
            "refsource": "CONFIRM",
            "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json"
          },
          {
            "name": "FEDORA-2021-97bd631e0a",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/"
          },
          {
            "name": "FEDORA-2021-3747cf6107",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/"
          },
          {
            "name": "DSA-5019",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2021/dsa-5019"
          },
          {
            "name": "[debian-lts-announce] 20211226 [SECURITY] [DLA 2849-1] wireshark security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html"
          },
          {
            "name": "GLSA-202210-04",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202210-04"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "3.2.17",
                "versionStartIncluding": "3.2.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "3.4.9",
                "versionStartIncluding": "3.4.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@gitlab.com",
          "ID": "CVE-2021-39921"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "lang": "en",
              "value": "NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file"
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-476"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.wireshark.org/security/wnpa-sec-2021-14.html",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.wireshark.org/security/wnpa-sec-2021-14.html"
            },
            {
              "name": "https://gitlab.com/wireshark/wireshark/-/issues/17703",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://gitlab.com/wireshark/wireshark/-/issues/17703"
            },
            {
              "name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json"
            },
            {
              "name": "FEDORA-2021-3747cf6107",
              "refsource": "FEDORA",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/"
            },
            {
              "name": "FEDORA-2021-97bd631e0a",
              "refsource": "FEDORA",
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                "Mailing List",
                "Third Party Advisory"
              ],
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            },
            {
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            },
            {
              "name": "[debian-lts-announce] 20211226 [SECURITY] [DLA 2849-1] wireshark security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html"
            },
            {
              "name": "GLSA-202210-04",
              "refsource": "GENTOO",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/202210-04"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "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
        }
      },
      "lastModifiedDate": "2022-10-28T20:09Z",
      "publishedDate": "2021-11-19T17:15Z"
    }
  }
}


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