{
  "id": "CVE-2022-21742",
  "sourceIdentifier": "twcert@cert.org.tw",
  "published": "2022-06-20T06:15:08.630",
  "lastModified": "2022-07-05T20:40:10.597",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services."
    },
    {
      "lang": "es",
      "value": "El controlador USB de Realtek presenta una vulnerabilidad de desbordamiento del b\u00fafer debido a una insuficiente verificaci\u00f3n de la longitud de los par\u00e1metros en la funci\u00f3n de la API. Un atacante no autenticado de la LAN puede explotar esta vulnerabilidad para interrumpir los servicios"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      },
      {
        "source": "twcert@cert.org.tw",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 6.2,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "ADJACENT_NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 3.3
        },
        "baseSeverity": "LOW",
        "exploitabilityScore": 6.5,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    },
    {
      "source": "twcert@cert.org.tw",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    }
  ],
  "configurations": [
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8156_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.42",
              "versionEndIncluding": "7.53",
              "matchCriteriaId": "053B5D66-0B8C-43B6-B9BB-C7453F1538EE"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8156_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.49",
              "versionEndIncluding": "8.60",
              "matchCriteriaId": "8926BFFE-126D-42D1-82FE-CFF70A7F8150"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8156_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.28",
              "versionEndExcluding": "10.50",
              "matchCriteriaId": "79FD09FD-7A22-45A1-A647-C6B74F41C78C"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:realtek:rtl8156:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "6A83CFC0-6E14-412E-9801-26759C5FD841"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8156b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.42",
              "versionEndIncluding": "7.53",
              "matchCriteriaId": "5ABBE52B-89D5-4D35-A5A2-B3C9B4D53F77"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8156b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.49",
              "versionEndIncluding": "8.60",
              "matchCriteriaId": "FD5CC9A1-F278-49D1-AEFD-36EE4423FC7D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8156b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.28",
              "versionEndExcluding": "10.50",
              "matchCriteriaId": "5D14BE40-0C3D-462C-B281-59EC98824EC3"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:realtek:rtl8156b:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "6B969E23-7613-48AC-A7CB-EE9757031F1B"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8153_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.42",
              "versionEndIncluding": "7.53",
              "matchCriteriaId": "593A86CF-4157-48C8-9446-D518AD6B02EA"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8153_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.49",
              "versionEndIncluding": "8.60",
              "matchCriteriaId": "5452E510-572F-42C8-9BD2-A198DB6C49D8"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8153_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.28",
              "versionEndExcluding": "10.50",
              "matchCriteriaId": "E6477CE1-4914-49CF-89E2-D0EA57FD4BC8"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:realtek:rtl8153:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "D4516E5A-7F54-456C-8982-45FC3A90F06A"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8153b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.42",
              "versionEndIncluding": "7.53",
              "matchCriteriaId": "F1915ED9-377D-4FF8-BC78-5CD96EF6FD22"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8153b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.49",
              "versionEndIncluding": "8.60",
              "matchCriteriaId": "979193FD-DF79-4C54-9BA3-1EBB0C33ED8B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8153b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.28",
              "versionEndExcluding": "10.50",
              "matchCriteriaId": "1077B900-7D08-430D-9A4B-F898321C55F5"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:realtek:rtl8153b:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "02859B5D-AA87-4349-82FE-912FE0CA4F3B"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8154_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.42",
              "versionEndIncluding": "7.53",
              "matchCriteriaId": "077F57FD-037A-4E1D-8A12-E13EB264B84B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8154_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.49",
              "versionEndIncluding": "8.60",
              "matchCriteriaId": "D2D6DC7D-3D8C-4E34-9E31-C048FE6E46AC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8154_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.28",
              "versionEndExcluding": "10.50",
              "matchCriteriaId": "526350AE-80DA-4216-995E-EFDCDC512CBA"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:realtek:rtl8154:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "42FE328C-DA1C-45E1-BC6D-653B7E8C2872"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8154b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.42",
              "versionEndIncluding": "7.53",
              "matchCriteriaId": "884B1F1E-F04E-4561-A555-10A38A3FEF2A"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8154b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.49",
              "versionEndIncluding": "8.60",
              "matchCriteriaId": "6A8C0FD6-A428-4865-9ACB-5ACC025BBD22"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8154b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.28",
              "versionEndExcluding": "10.50",
              "matchCriteriaId": "4537F748-6B0E-475E-8D51-07E9472E9F5B"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:realtek:rtl8154b:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "AC2E29AC-D7C3-41C7-9DBD-A433C70E125B"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8152b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.42",
              "versionEndIncluding": "7.53",
              "matchCriteriaId": "B22F885E-32C6-4DB6-A7E3-20DD86795ECD"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8152b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.49",
              "versionEndIncluding": "8.60",
              "matchCriteriaId": "99FE41B7-E38A-48A1-B412-03F06BD78715"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:realtek:rtl8152b_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.28",
              "versionEndExcluding": "10.50",
              "matchCriteriaId": "44C96B76-8951-41FA-84FF-993F6187CAE3"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:realtek:rtl8152b:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "794B2656-570E-4AE4-A852-E55CFC2217C7"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.twcert.org.tw/tw/cp-132-6057-1cd0d-1.html",
      "source": "twcert@cert.org.tw",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}