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CVE-2015-6826

Estado: ModificadaAlta (7.5)—

Vulnerabilidad en la función ff_rv34_decode_init_thread_copy en libavcodec/rv34.c en FFmpeg en versiones anteriores a 2.7.2, no inicializa ciertos miembros de estructura, lo que permite a atacantes remotos causar una denegación de servicio (acceso a puntero no válido) o posiblemente tener otro impacto no especificado a través de datos (1) RV30 o (2) RV40 RealVideo manipulados.

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 (2)

Canonical — Ubuntu LinuxFfmpeg — Ffmpeg

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2015-6826",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2015-09-06T02:59:09.237",
  "references": [
    {
      "url": "http://ffmpeg.org/security.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=3197c0aa87a3b7190e17d49e6fbc7b554e4b3f0a",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1033483",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2944-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://ffmpeg.org/security.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=3197c0aa87a3b7190e17d49e6fbc7b554e4b3f0a",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1033483",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2944-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ff_rv34_decode_init_thread_copy function in libavcodec/rv34.c in FFmpeg before 2.7.2 does not initialize certain structure members, which allows remote attackers to cause a denial of service (invalid pointer access) or possibly have unspecified other impact via crafted (1) RV30 or (2) RV40 RealVideo data."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad en la función ff_rv34_decode_init_thread_copy en libavcodec/rv34.c en FFmpeg en versiones anteriores a 2.7.2, no inicializa ciertos miembros de estructura, lo que permite a atacantes remotos causar una denegación de servicio (acceso a puntero no válido) o posiblemente tener otro impacto no especificado a través de datos (1) RV30 o (2) RV40 RealVideo manipulados."
    }
  ],
  "lastModified": "2026-06-17T00:31:29.223",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B6B7CAD7-9D4E-4FDB-88E3-1E583210A01F"
            }
          ],
          "operator": "OR"
        }
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    },
    {
      "nodes": [
        {
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          "cpeMatch": [
            {
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              "vulnerable": true,
              "matchCriteriaId": "1F6121E6-4C3F-42F3-8627-709534D9A0C9",
              "versionEndIncluding": "2.7.1"
            }
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          "operator": "OR"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}