{"id":148495,"date":"2025-11-15T23:11:59","date_gmt":"2025-11-15T21:11:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/udalyonno-ekspluatiruemaya-uzvimost-v-bluetooth-steke-platformy-android"},"modified":"2025-11-15T23:11:59","modified_gmt":"2025-11-15T21:11:59","slug":"udalyonno-ekspluatiruemaya-uzvimost-v-bluetooth-steke-platformy-android","status":"publish","type":"post","link":"https:\/\/prohoster.info\/no\/blog\/news\/udalyonno-ekspluatiruemaya-uzvimost-v-bluetooth-steke-platformy-android","title":{"rendered":"Fjernutnyttbar s\u00e5rbarhet i Bluetooth-stakken p\u00e5 Android-plattformen","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

I november sikkerhetsbulletinen for Android er det publisert informasjon om s\u00e5rbarheten CVE-2025-48593 i Bluetooth-undermodulen, som ber\u00f8rer Android-versjoner fra 13 til 16. S\u00e5rbarheten har f\u00e5tt et kritisk fare-niv\u00e5 (9.8 av 10) da den kan f\u00f8re til fjernkodekj\u00f8ring ved behandling av spesialformede Bluetooth-pakker. <\/p>\n

Google har forel\u00f8pig ikke avsl\u00f8rt detaljer om s\u00e5rbarheten, men uavhengige forskere hevder at problemet ikke ber\u00f8rer vanlige smarttelefoner, men kun Bluetooth-enheter som kan fungere som h\u00f8yttalere, som smarte h\u00f8yttalere, smartklokker og bilers underholdningssystemer. For \u00e5 utnytte s\u00e5rbarheten m\u00e5 brukeren pare sin enhet med angriperens enhet, s\u00e5 for \u00e5 blokkere problemet kan man unng\u00e5 \u00e5 akseptere mistenkelige paringsforesp\u00f8rselen (det er nevnt i Google-bulletinen at ingen handling fra brukeren er n\u00f8dvendig for utnyttelse). <\/p>\n

Korrigeringen inneb\u00e6rer \u00e5 legge til et kall for \u00e5 sjekke eksistensen av Discovery Database n\u00e5r man arbeider med Bluetooth-profilen Handsfree, samt \u00e5 stoppe jakt p\u00e5 noder med bruk av SDP (Service Discovery Protocol) og tilbakestille og t\u00f8mme strukturen p_disc_db (\"discovery database\"). Bestemte manipulasjoner for \u00e5 returnere feil og gjenoppta forbindelser i prosessen med \u00e5 identifisere Bluetooth-tjenesten og avtale interaksjonen. serveren<\/a> med klienten f\u00f8rer til tilgang til allerede frigjort minne (use-after-free). <\/p>\n

L\u00f8sningen er allerede tatt inn i kodebasen til LineageOS. En tidlig prototype av et exploit som for\u00e5rsaker krasj ved oppstart av Android i en spesialemulator er tilgjengelig. Det har ogs\u00e5 blitt observert fors\u00f8k p\u00e5 \u00e5 selge fungerende exploits p\u00e5 nettet, men angivelig er dette fors\u00f8k p\u00e5 distribusjon av skadelig programvare eller salg av falske produkter av svindlere. <\/p>\n

I tillegg til denne s\u00e5rbarheten inneholder novembers oppdatering av Android en l\u00f8sning p\u00e5 s\u00e5rbarheten CVE-2025-48581, som f\u00f8rer til heving av privilegier. Problemet ber\u00f8rer bare Android 16 og er merket som kritisk. \u00c5rsaken til s\u00e5rbarheten er en logisk feil i funksjonen VerifyNoOverlapInSessions fra filen apexd.cpp, som gj\u00f8r det mulig \u00e5 blokkere installasjon av oppdateringer som retter opp sikkerhetsproblemer. Det bemerkes at s\u00e5rbarheten kan brukes til lokal heving av privilegier. For \u00e5 utf\u00f8re angrepet kreves det ikke at brukeren utf\u00f8rer noen handlinger.
\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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