{
  "id": "CVE-2017-16803",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2017-11-13T17:29:00.567",
  "lastModified": "2024-11-21T03:17:00.220",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service (bitstream.c:build_table() out-of-bounds read and application crash) via a crafted Smacker stream."
    },
    {
      "lang": "es",
      "value": "En Libav hasta la versi\u00f3n 11.11 y las versiones 12.x hasta la 12.1, la funci\u00f3n smacker_decode_tree en libavcodec/smacker.c no restringe correctamente la recursi\u00f3n de \u00e1rbol, lo que permite que atacantes remotos provoquen una denegaci\u00f3n de servicio (lectura fuera de l\u00edmites de bitstream.c:build_table() y cierre inesperado de la aplicaci\u00f3n) mediante una transmisi\u00f3n Smacker manipulada."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "baseScore": 5.0,
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "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-119"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "11.11",
              "matchCriteriaId": "D64C7955-5796-4434-8FC0-4486FE1E2AB5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:libav:libav:12.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "D26A9134-C152-46A4-83AB-F61EF54A69B7"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:libav:libav:12.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "99846C93-A0F8-459D-AC79-A79CDE487505"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/101882",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://bugzilla.libav.org/show_bug.cgi?id=1098",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://security.gentoo.org/glsa/201811-19",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.debian.org/security/2018/dsa-4119",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/101882",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://bugzilla.libav.org/show_bug.cgi?id=1098",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://security.gentoo.org/glsa/201811-19",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2018/dsa-4119",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}