{
  "id": "CVE-2019-8258",
  "sourceIdentifier": "vulnerability@kaspersky.com",
  "published": "2019-03-05T15:29:00.320",
  "lastModified": "2020-10-19T17:49:59.657",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "UltraVNC revision 1198 has a heap buffer overflow vulnerability in VNC client code which results code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199."
    },
    {
      "lang": "es",
      "value": "UltraVNC, en su revisi\u00f3n 1198, tiene una vulnerabilidad de desbordamiento de b\u00fafer de memoria din\u00e1mica (heap) en el c\u00f3digo del cliente VNC, lo que resulta en la ejecuci\u00f3n de c\u00f3digo. Este ataque parece ser explotable mediante la conectividad de red. Esto se ha solucionado en la revisi\u00f3n 1199."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    },
    {
      "source": "vulnerability@kaspersky.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.2.2.3",
              "matchCriteriaId": "555D034F-3D64-4ED1-9B63-F8D59199E99C"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:siemens:sinumerik_access_mymachine\\/p2p:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "4.8",
              "matchCriteriaId": "D9345335-DF62-4472-93CD-E2C85453F91E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\\/ipc:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "14.00",
              "matchCriteriaId": "7498412D-79FD-43FE-AD9B-5820FB5CF7D8"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\\/ipc:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "12.01",
              "matchCriteriaId": "1F603341-03C5-46CA-8A74-EC5A50135194"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf",
      "source": "vulnerability@kaspersky.com",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-004-ultravnc-heap-based-buffer-overflow/",
      "source": "vulnerability@kaspersky.com",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.us-cert.gov/ics/advisories/icsa-20-161-06",
      "source": "vulnerability@kaspersky.com",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ]
}