Check Point yazindikira chiwopsezo mu ALAC (Apple Lossless Audio Codec) ma audio compression decoder operekedwa ndi MediaTek (CVE-2021-0674, CVE-2021-0675) ndi Qualcomm (CVE-2021-30351). Vutoli limalola kuti code yowukirayo ichitike mukakonza ma data opangidwa mwapadera mumtundu wa ALAC.
Kuopsa kwa vutoli kumawonjezeka chifukwa chakuti kumakhudza zipangizo zomwe zimagwiritsa ntchito nsanjayi. Android, yokhala ndi ma chips a MediaTek ndi Qualcomm. Chifukwa cha kuukiraku, wowukirayo amatha kugwiritsa ntchito pulogalamu yaumbanda pa chipangizocho, pogwiritsa ntchito mauthenga ndi deta ya multimedia ya wogwiritsa ntchito, kuphatikizapo deta ya kamera. Akuti awiri mwa atatu a ogwiritsa ntchito mafoni onse omwe amagwiritsa ntchito nsanjayi akukhudzidwa ndi vutoli. AndroidMwachitsanzo, ku US, gawo lonse la magalimoto onse ogulitsidwa mu kotala lachinayi la 2021 Android- mafoni a m'manja omwe adaperekedwa ndi MediaTek ndi ma chips a Qualcomm adakwana 95.1% (48.1% - MediaTek, 47% - Qualcomm).
Tsatanetsatane wa momwe kufooka kumeneku kumagwiritsidwira ntchito sikunawululidwebe, koma zanenedwa kuti zigawo za MediaTek ndi Qualcomm za nsanjayi Android Kukonza kunapangidwa mu Disembala 2021. Mu lipoti la kufooka kwa nsanja ya Disembala Android Mavutowa akuonedwa ngati zovuta zazikulu mu zigawo za Qualcomm chips. Kufooka kwa zigawo za MediaTek sikunatchulidwe m'malipotiwo.
Kusatetezeka kumakhala kosangalatsa chifukwa cha mizu yake. Mu 2011, Apple inatsegula codec codec ya ALAC codec, yomwe imalola kukakamiza kwa deta popanda kutaya khalidwe, pansi pa chilolezo cha Apache 2.0, ndikupangitsa kuti zitheke kugwiritsa ntchito ma patent onse okhudzana ndi codec. Khodiyo idasindikizidwa koma idasiyidwa yosasungidwa ndipo sinasinthidwe kwazaka 11 zapitazi. Nthawi yomweyo, Apple idapitilizabe kuthandizira payokha kukhazikitsa komwe kumagwiritsidwa ntchito pamapulatifomu ake, kuphatikiza kuchotsa zolakwika ndi zofooka momwemo. MediaTek ndi Qualcomm adakhazikitsa ma codec awo a ALAC pamakhodi otseguka a Apple, koma sanaphatikizepo zovuta zomwe Apple adakhazikitsa pakukhazikitsa kwawo.
Palibe chidziwitso chokhudza kusatetezeka kwazinthu zina zomwe zimagwiritsanso ntchito nambala yakale ya ALAC. Mwachitsanzo, mawonekedwe a ALAC athandizidwa kuyambira FFmpeg 1.1, koma code yokhala ndi decoder kukhazikitsa imasungidwa mwachangu.
Source: opennet.ru
