{
  "id": "CVE-2018-20197",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2018-12-18T01:29:00.410",
  "lastModified": "2024-11-21T04:01:04.750",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "There is a stack-based buffer underflow in the third instance of the calculate_gain function in libfaad/sbr_hfadj.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. A crafted input will lead to a denial of service or possibly unspecified other impact because limiting the additional noise energy level is mishandled for the G_max > G case."
    },
    {
      "lang": "es",
      "value": "Hay un subdesbordamiento de b\u00fafer basado en pila en la tercera instancia de la funci\u00f3n calculate_gain en libfaad/sbr_hfadj.c en Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. Una entrada manipulada conducir\u00e1 a una denegaci\u00f3n de servicio (DoS) o, posiblemente, otro tipo de impacto sin especificar. Esto se debe a que el nivel de energ\u00eda adicional de ruido se gestiona de manera incorrecta para el caso G_max > G."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:audiocoding:freeware_advanced_audio_decoder_2:2.8.8:*:*:*:*:*:*:*",
              "matchCriteriaId": "BED01953-4703-4DDA-A93A-DE055A5C651D"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/knik0/faad2/issues/20",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00022.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://seclists.org/bugtraq/2019/Sep/28",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/202006-17",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.debian.org/security/2019/dsa-4522",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/knik0/faad2/issues/20",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00022.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://seclists.org/bugtraq/2019/Sep/28",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/202006-17",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2019/dsa-4522",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}