{
  "cveId": "CVE-2021-3498",
  "url": "https://patchblox.com/security/cve/CVE-2021-3498",
  "summary": "CVE-2021-3498 is fixed in 5 products on 1 platform, first by gstreamer1.0-gtk3 1.14.5-0ubuntu1~18.04.2, released April 19, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "gstreamer1.0-gtk3: GStreamer before 1.18.4 might cause heap corruption when parsing certain malformed Matroska files.",
  "description": "GStreamer before 1.18.4 might cause heap corruption when parsing certain malformed Matroska files.",
  "published": "2021-04-19T14:15:00Z",
  "severity": "Medium",
  "epss": 0.01762,
  "epssPercentile": 0.78152,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "gstreamer1.0-gtk3",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.14.5-0ubuntu1~18.04.2",
      "fix": "gstreamer1.0-gtk3 1.14.5-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gstreamer1.0-gtk3-1.14.5-0ubuntu1-18.04.2",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "gstreamer1.0-gtk3",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.16.2-1ubuntu2.1",
      "fix": "gstreamer1.0-gtk3 1.16.2-1ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gstreamer1.0-gtk3-1.16.2-1ubuntu2.1",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "gstreamer1.0-plugins-good",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.14.5-0ubuntu1~18.04.2",
      "fix": "gstreamer1.0-plugins-good 1.14.5-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gstreamer1.0-plugins-good-1.14.5-0ubuntu1-18.04.2",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "gstreamer1.0-plugins-good",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.16.2-1ubuntu2.1",
      "fix": "gstreamer1.0-plugins-good 1.16.2-1ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gstreamer1.0-plugins-good-1.16.2-1ubuntu2.1",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "gstreamer1.0-pulseaudio",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.14.5-0ubuntu1~18.04.2",
      "fix": "gstreamer1.0-pulseaudio 1.14.5-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gstreamer1.0-pulseaudio-1.14.5-0ubuntu1-18.04.2",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "gstreamer1.0-pulseaudio",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.16.2-1ubuntu2.1",
      "fix": "gstreamer1.0-pulseaudio 1.16.2-1ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gstreamer1.0-pulseaudio-1.16.2-1ubuntu2.1",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "gstreamer1.0-qt5",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.14.5-0ubuntu1~18.04.2",
      "fix": "gstreamer1.0-qt5 1.14.5-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gstreamer1.0-qt5-1.14.5-0ubuntu1-18.04.2",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "gstreamer1.0-qt5",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.16.2-1ubuntu2.1",
      "fix": "gstreamer1.0-qt5 1.16.2-1ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gstreamer1.0-qt5-1.16.2-1ubuntu2.1",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libgstreamer-plugins-good1.0-0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.14.5-0ubuntu1~18.04.2",
      "fix": "libgstreamer-plugins-good1.0-0 1.14.5-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libgstreamer-plugins-good1.0-0-1.14.5-0ubuntu1-18.04.2",
      "released": "2021-04-19T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libgstreamer-plugins-good1.0-0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.16.2-1ubuntu2.1",
      "fix": "libgstreamer-plugins-good1.0-0 1.16.2-1ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libgstreamer-plugins-good1.0-0-1.16.2-1ubuntu2.1",
      "released": "2021-04-19T14:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}