ubuntu-cve-2021-33815
Vulnerability from osv_ubuntu
Published
2021-06-03 17:15
Modified
2025-07-16 04:57
Summary
Details

dwa_uncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dc_count is not strictly checked.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ffmpeg",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "ffmpeg-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "ffmpeg-doc",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavcodec-dev",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavcodec-extra58",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavcodec-extra58-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavcodec58",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavcodec58-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavdevice-dev",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavdevice58",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavdevice58-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavfilter-dev",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavfilter-extra7",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavfilter-extra7-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavfilter7",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavfilter7-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavformat-dev",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavformat-extra",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavformat-extra58",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavformat-extra58-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavformat58",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavformat58-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavutil-dev",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavutil56",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libavutil56-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libpostproc-dev",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libpostproc55",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libpostproc55-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libswresample-dev",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libswresample3",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libswresample3-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libswscale-dev",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libswscale5",
            "binary_version": "7:4.4.1-3ubuntu2"
          },
          {
            "binary_name": "libswscale5-dbgsym",
            "binary_version": "7:4.4.1-3ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ffmpeg",
        "purl": "pkg:deb/ubuntu/ffmpeg@7:4.4.1-3ubuntu2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7:4.4.1-3ubuntu2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7:4.4-6ubuntu5",
        "7:4.4.1-2ubuntu1",
        "7:4.4.1-3ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "dwa_uncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dc_count is not strictly checked.",
  "id": "UBUNTU-CVE-2021-33815",
  "modified": "2025-07-16T04:57:20Z",
  "published": "2021-06-03T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-33815"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FFmpeg/FFmpeg/commit/26d3c81bc5ef2f8c3f09d45eaeacfb4b1139a777"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-33815"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-33815"
  ],
  "withdrawn": "2025-07-18T16:46:52Z"
}



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