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CVE-2017-1000460

Estado: ModificadaMedia (6.5)—

En la línea libavcodec/h264dec.c:500 en libav (v13_dev0), ffmpeg (n3.4) y chromium (56 anterior al 13 de febrero de 2017), el valor de retorno de init_get_bits se ignora y se llama a get_ue_golomb (gb) en un contexto get_bits no inicializado. Esto desemboca en una excepción NULL deref.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Ffmpeg — FfmpegGoogle — ChromeLibav — Libav

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2017-1000460",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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    "cvssMetricV30": [
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        "type": "Primary",
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          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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  "published": "2018-01-03T20:29:00.220",
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      "url": "https://bugzilla.libav.org/show_bug.cgi?id=952",
      "tags": [
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        "Issue Tracking",
        "Third Party Advisory"
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      "url": "https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2017-January/104221.html",
      "tags": [
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      ],
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      "url": "https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2017-January/104221.html",
      "tags": [
        "Issue Tracking",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
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    {
      "lang": "en",
      "value": "In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception."
    },
    {
      "lang": "es",
      "value": "En la línea libavcodec/h264dec.c:500 en libav (v13_dev0), ffmpeg (n3.4) y chromium (56 anterior al 13 de febrero de 2017), el valor de retorno de init_get_bits se ignora y se llama a get_ue_golomb (gb) en un contexto get_bits no inicializado. Esto desemboca en una excepción NULL deref."
    }
  ],
  "lastModified": "2026-06-17T00:59:12.573",
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}