FFmpeg prior to commit bf814 was discovered to contain an out of bounds read via the dist->alphabetsize variable in the readvlc_prefix() function.
{ "vanir_signatures": [ { "deprecated": false, "target": { "file": "libavcodec/jpegxl_parser.c" }, "digest": { "line_hashes": [ "220105966798282059149030715726161075097", "180266453498400246804549189909960284257", "73148644264980185597476409712978687637", "286365265477864894663546510757351403280", "314825778526346358653735226755182398776", "26188299848253069645477578457604842870", "110198206348898803625418330821014898473", "50174480327311949858501076809751562445", "241231218723808208340456890550097955329", "215507175544650923089399575093236194023", "135068194385828229163406492702140006936", "66105321909184906114181906357038537826", "103298978993242040100671715024707989084", "59867939728337908485496230187377173800", "186153454835257189652159919942203871455", "217904120362395215651209069424841598492", "244350113364213515402405323863438481593", "22739512687949424616341514537521894591", "195062092206686434824385287088849634092", "146162376980627030924901460276244417252", "133920733564074082834441774627524333534", "68149985661876096145212288079652518284", "8794963223613958660785421004769206966", "167517125330278610343926185623958502797", "311850500435999907485961778227643536943", "27638573581810548983839897062912772353", "208639768320764247846338918768595314724", "39809637958411109255979130445286273541", "192094578223806588773817202505907616487", "291864371857363825018194682428755554932", "299426667417931789722350074207923473636", "157004792883306756351436045336708693246", "95673350118243145527808864108976933409", "332141338909193022304396035094518584512" ], "threshold": 0.9 }, "source": "https://github.com/ffmpeg/ffmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962", "id": "CVE-2023-46407-87c7faee", "signature_type": "Line", "signature_version": "v1" }, { "deprecated": false, "target": { "function": "read_vlc_prefix", "file": "libavcodec/jpegxl_parser.c" }, "digest": { "function_hash": "253764707101986371767092635021744105843", "length": 3074.0 }, "source": "https://github.com/ffmpeg/ffmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962", "id": "CVE-2023-46407-b175de68", "signature_type": "Function", "signature_version": "v1" } ] }