Integer overflow vulnerability in avtimecodemake_string in libavutil/timecode.c in FFmpeg version 4.3.2, allows local attackers to cause a denial of service (DoS) via crafted .mov file.
[
{
"target": {
"file": "libavutil/timecode.c"
},
"deprecated": false,
"id": "CVE-2021-28429-2bf1971a",
"signature_version": "v1",
"digest": {
"line_hashes": [
"335739989115254508712258778105280409638",
"274512929795770645397955884638312007539",
"38893900513757338277920846245099231610",
"94505868597328706020015251903087308703",
"267156690267434599005120480994457071610"
],
"threshold": 0.9
},
"signature_type": "Line",
"source": "https://git.ffmpeg.org/ffmpeg.git@c94875471e3ba3dc396c6919ff3ec9b14539cd71"
},
{
"target": {
"file": "libavutil/timecode.c",
"function": "av_timecode_make_string"
},
"deprecated": false,
"id": "CVE-2021-28429-cb5ec445",
"signature_version": "v1",
"digest": {
"function_hash": "58418444567264364141299228991211175920",
"length": 690.0
},
"signature_type": "Function",
"source": "https://git.ffmpeg.org/ffmpeg.git@c94875471e3ba3dc396c6919ff3ec9b14539cd71"
}
]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28429.json"
"2026-08-17T05:26:21Z"