A NULL pointer dereference in the gf_ac4_pres_b_4_back_channels_present function (/media_tools/av_parsers.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AC4 file.Referenceshttps://github.com/gpac/gpac/commit/13eb5b76560aaf7813b865a2ad433258478e2695https://github.com/gpac/gpac/issues/3302https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/49/README.mdhttps://infosec.exchange/@sigdevel/116659111520602254
