ubuntu-cve-2021-25804
Vulnerability from osv_ubuntu
Published
2021-07-26 17:15
Modified
2026-04-22 07:39
Summary
Details

A NULL-pointer dereference in "Open" in avi.c of VideoLAN VLC Media Player 3.0.11 can a denial of service (DOS) in the application.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libvlc5",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "libvlccore8",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-data",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-nox",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-plugin-fluidsynth",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-plugin-jack",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-plugin-notify",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-plugin-samba",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-plugin-sdl",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-plugin-svg",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          },
          {
            "binary_name": "vlc-plugin-zvbi",
            "binary_version": "2.2.2-5ubuntu0.16.04.5+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "vlc",
        "purl": "pkg:deb/ubuntu/vlc@2.2.2-5ubuntu0.16.04.5+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.2-5ubuntu0.16.04.5+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.1-3",
        "2.2.1-5",
        "2.2.2-1",
        "2.2.2-2",
        "2.2.2-3",
        "2.2.2-3build1",
        "2.2.2-4",
        "2.2.2-5",
        "2.2.2-5ubuntu0.16.04.1",
        "2.2.2-5ubuntu0.16.04.2",
        "2.2.2-5ubuntu0.16.04.3",
        "2.2.2-5ubuntu0.16.04.4",
        "2.2.2-5ubuntu0.16.04.5+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libvlc-bin",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "libvlc5",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "libvlccore9",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-bin",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-data",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-l10n",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-access-extra",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-base",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-fluidsynth",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-jack",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-notify",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-qt",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-samba",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-skins2",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-svg",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-video-output",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-video-splitter",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-visualization",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          },
          {
            "binary_name": "vlc-plugin-zvbi",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "vlc",
        "purl": "pkg:deb/ubuntu/vlc@3.0.8-0ubuntu18.04.1+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.8-0ubuntu18.04.1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.6-6",
        "2.2.6-6build1",
        "2.2.7-1",
        "2.2.8-1",
        "2.2.8-1ubuntu4",
        "2.2.8-2",
        "3.0.0~rc1-1ubuntu1",
        "3.0.0~rc1-1ubuntu3",
        "3.0.0~rc2-1ubuntu1",
        "3.0.0~rc2-2ubuntu1",
        "3.0.0~rc2-2ubuntu2",
        "3.0.0~rc4-1ubuntu1",
        "3.0.0~rc7-2ubuntu1",
        "3.0.0~rc8-1ubuntu1",
        "3.0.0-1ubuntu1",
        "3.0.1-1ubuntu5",
        "3.0.1-2ubuntu1",
        "3.0.1-2ubuntu2",
        "3.0.1-3",
        "3.0.1-3build1",
        "3.0.2-0ubuntu0.1",
        "3.0.3-1-1ubuntu1",
        "3.0.4-1ubuntu0.2",
        "3.0.7.1-0ubuntu18.04.1",
        "3.0.8-0ubuntu18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libvlc-bin",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libvlc5",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libvlccore9",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-bin",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-data",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-l10n",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-access-extra",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-base",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-fluidsynth",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-jack",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-notify",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-qt",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-samba",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-skins2",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-svg",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-video-output",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-video-splitter",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "vlc-plugin-visualization",
            "binary_version": "3.0.9.2-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "vlc",
        "purl": "pkg:deb/ubuntu/vlc@3.0.9.2-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.9.2-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.8-2",
        "3.0.8-2build1",
        "3.0.8-3",
        "3.0.8-3build1",
        "3.0.8-3build2",
        "3.0.8-3build4",
        "3.0.8-4",
        "3.0.9.2-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A NULL-pointer dereference in \"Open\" in avi.c of VideoLAN VLC Media Player 3.0.11 can a denial of service (DOS) in the application.",
  "id": "UBUNTU-CVE-2021-25804",
  "modified": "2026-04-22T07:39:56Z",
  "published": "2021-07-26T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-25804"
    },
    {
      "type": "REPORT",
      "url": "https://code.videolan.org/videolan/vlc-3.0/-/commit/a7f577ec26d35bbd7b2a3cda89d1b41bde69de9c"
    },
    {
      "type": "REPORT",
      "url": "https://code.videolan.org/videolan/vlc-3.0/-/commit/a7f577ec26d35bbd7b2a3cda89d1b41bde69de9c"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6180-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-25804"
    }
  ],
  "related": [
    "USN-6180-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-25804"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.