{
  "cveId": "CVE-2021-3246",
  "url": "https://patchblox.com/security/cve/CVE-2021-3246",
  "summary": "CVE-2021-3246 is fixed in 4 products on 1 platform, first by libsndfile1 1.0.28-4ubuntu0.18.04.2, released July 20, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libsndfile: libsndfile is a C library for reading and writing files containing sampled sound, such as AIFF, AU, or WAV",
  "description": "libsndfile is a C library for reading and writing files containing sampled sound, such as AIFF, AU, or WAV. \n\nSecurity Fix(es):\n\n* libsndfile: Heap buffer overflow via crafted WAV file allows arbitrary code execution (CVE-2021-3246)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2021-07-20T08:15:00Z",
  "severity": "Important",
  "cvss": 8.8,
  "epss": 0.03116,
  "epssPercentile": 0.87894,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libsndfile",
      "release": "RHEL 8",
      "fixedVersion": "0:1.0.28-10.el8_4.1",
      "fix": "RHSA-2021:3253",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3253",
      "released": "2021-08-24T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libsndfile",
      "release": "ol 8",
      "fixedVersion": "0:1.0.28-10.el8_4.1",
      "fix": "ELSA-2021-3253",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3253",
      "released": "2021-08-24T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libsndfile-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:1.0.28-10.el8_4.1",
      "fix": "RHSA-2021:3253",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3253",
      "released": "2021-08-24T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libsndfile-devel",
      "release": "ol 8",
      "fixedVersion": "0:1.0.28-10.el8_4.1",
      "fix": "ELSA-2021-3253",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3253",
      "released": "2021-08-24T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libsndfile1",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.0.28-4ubuntu0.18.04.2",
      "fix": "libsndfile1 1.0.28-4ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libsndfile1-1.0.28-4ubuntu0.18.04.2",
      "released": "2021-07-20T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libsndfile1",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.0.28-7ubuntu0.1",
      "fix": "libsndfile1 1.0.28-7ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libsndfile1-1.0.28-7ubuntu0.1",
      "released": "2021-07-20T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "sndfile-programs",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.0.28-4ubuntu0.18.04.2",
      "fix": "sndfile-programs 1.0.28-4ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-sndfile-programs-1.0.28-4ubuntu0.18.04.2",
      "released": "2021-07-20T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "sndfile-programs",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.0.28-7ubuntu0.1",
      "fix": "sndfile-programs 1.0.28-7ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-sndfile-programs-1.0.28-7ubuntu0.1",
      "released": "2021-07-20T08:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}