adtsdecodeextradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check the initgetbits return value, which is a necessary step because the second argument to initgetbits can be crafted.
{
"license": "CC-BY-4.0",
"sources": [
{
"id": "CVE-2021-38171",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-38171",
"imported": "2025-10-18T14:07:17.165Z",
"published": "2021-08-21T17:15:07.700Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38171",
"modified": "2024-11-21T06:16:33.257Z"
}
]
}