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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2021-38114

libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init_vlc function, a similar issue to CVE-2013-0868.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-38114
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 09:27 UTC · Revision 1

Source evidence

CVE-2021-38114

core-osv · Original source

Published 4 Aug 2021, 21:15 UTC

libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init_vlc function, a similar issue to CVE-2013-0868.

osv:CVE-2021-38114
Complete source record
{
  "id": "08f667ed3a5596f07b3b6d6b538a6a7e9384a8fb09f0d15892e45e23806a02c4",
  "url": "https://osv.dev/vulnerability/CVE-2021-38114",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-38114",
    "summary": "libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init_vlc function, a similar issue to CVE-2013-0868.",
    "evidence": "osv:CVE-2021-38114",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-38114",
      "aliases": [
        "CVE-2021-38114"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.ffmpeg.org/ffmpeg.git",
              "type": "GIT",
              "events": [
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                  "introduced": "c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"
                },
                {
                  "last_affected": "c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.4"
                      },
                      {
                        "last_affected": "4.4"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4",
            "n4.4-dev"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38114.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/ffmpeg/ffmpeg",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"
                },
                {
                  "last_affected": "c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"
                },
                {
                  "fixed": "7150f9575671f898382c370acae35f9087a30ba1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.4"
                      },
                      {
                        "last_affected": "4.4"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "7150f9575671f898382c370acae35f9087a30ba1"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4",
            "n4.4-dev"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38114.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-38114-03aba8a8",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
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                },
                "source": "https://github.com/ffmpeg/ffmpeg/commit/7150f9575671f898382c370acae35f9087a30ba1",
                "target": {
                  "file": "libavcodec/dnxhddec.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-38114-a3403b56",
                "digest": {
                  "length": 1136,
                  "function_hash": "277203167962598597416599143335140589121"
                },
                "source": "https://github.com/ffmpeg/ffmpeg/commit/7150f9575671f898382c370acae35f9087a30ba1",
                "target": {
                  "file": "libavcodec/dnxhddec.c",
                  "function": "dnxhd_init_vlc"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-24T14:25:18Z"
          }
        }
      ],
      "modified": "2026-10-24T14:25:18.509507422Z",
      "provider": "osv",
      "references": [
        "https://patchwork.ffmpeg.org/project/ffmpeg/patch/PAXP193MB12624C21AE412BE95BA4D4A4B6F09%40PAXP193MB1262.EURP193.PROD.OUTLOOK.COM/",
        "https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html",
        "https://www.debian.org/security/2021/dsa-4990",
        "https://www.debian.org/security/2021/dsa-4998",
        "https://github.com/FFmpeg/FFmpeg/commit/7150f9575671f898382c370acae35f9087a30ba1"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  },
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-38114",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 443753,
  "published_at": "2021-08-04T21:15:08.13+00:00"
}