FKIE_CVE-2020-1992

Vulnerability from fkie_nvd - Published: 2020-04-08 19:15 - Updated: 2026-06-17 03:02
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a denial of service condition or potentially execute code with root privileges. This issue affects Palo Alto Networks PAN-OS 9.0 versions before 9.0.7; PAN-OS 9.1 versions before 9.1.2 on PA-7000 Series devices with an LFC installed and configured. This issue requires WildFire services to be configured and enabled. This issue does not affect PAN-OS 8.1 and earlier releases. This issue does not affect any other PA Series firewalls.
References
psirt@paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2020-1992Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.paloaltonetworks.com/CVE-2020-1992Vendor Advisory
Impacted products
Vendor Product Version
paloaltonetworks pan-os *
paloaltonetworks pan-os *
paloaltonetworks pa-7050 -
paloaltonetworks pa-7080 -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "platforms": [
            "PA-7000 series with LFC"
          ],
          "product": "PAN-OS",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "changes": [
                {
                  "at": "9.0.7",
                  "status": "unaffected"
                }
              ],
              "lessThan": "9.0.7",
              "status": "affected",
              "version": "9.0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "9.1.2",
                  "status": "unaffected"
                }
              ],
              "lessThan": "9.1.2",
              "status": "affected",
              "version": "9.1",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "PAN-OS",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "status": "unaffected",
              "version": "8.1.*"
            },
            {
              "status": "unaffected",
              "version": "8.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.*"
            }
          ]
        }
      ],
      "source": "psirt@paloaltonetworks.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "215D027B-4831-4BB9-8CEF-D5657D27EE9C",
              "versionEndExcluding": "9.0.7",
              "versionStartIncluding": "9.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "393C1028-D9B7-4CB3-96F7-5675D79525CD",
              "versionEndExcluding": "9.1.2",
              "versionStartIncluding": "9.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:paloaltonetworks:pa-7050:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "1536A4E4-D769-45C8-B85C-4A1A4F4AAEC0",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:paloaltonetworks:pa-7080:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "01AEF722-2554-4B30-8821-84B20F3BA8CC",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a denial of service condition or potentially execute code with root privileges. This issue affects Palo Alto Networks PAN-OS 9.0 versions before 9.0.7; PAN-OS 9.1 versions before 9.1.2 on PA-7000 Series devices with an LFC installed and configured. This issue requires WildFire services to be configured and enabled. This issue does not affect PAN-OS 8.1 and earlier releases. This issue does not affect any other PA Series firewalls."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de cadena de formato en el demonio Varrcvr de PAN-OS en dispositivos PA-7000 Series con Log Forwarding Card (LFC), permite a atacantes remotos bloquear el demonio creando una condici\u00f3n de denegaci\u00f3n de servicio o potencialmente ejecutar c\u00f3digo con privilegios root. Este problema afecta a Palo Alto Networks PAN-OS versiones 9.0 anteriores a 9.0.7; versiones PAN-OS 9.1 anteriores a 9.1.2 en dispositivos PA-7000 Series con un LFC instalado y configurado. Este problema requiere que los servicios WildFire est\u00e9n configurados y habilitados. Este problema no afecta a PAN-OS versiones 8.1 y anteriores. Este problema no afecta a ning\u00fan otro firewall de PA Series."
    }
  ],
  "id": "CVE-2020-1992",
  "lastModified": "2026-06-17T03:02:47.287",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.3,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "psirt@paloaltonetworks.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-04-08T19:15:14.213",
  "references": [
    {
      "source": "psirt@paloaltonetworks.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.paloaltonetworks.com/CVE-2020-1992"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.paloaltonetworks.com/CVE-2020-1992"
    }
  ],
  "sourceIdentifier": "psirt@paloaltonetworks.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-134"
        }
      ],
      "source": "psirt@paloaltonetworks.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-134"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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