Nuglaanta fog ee laga faa'iidaysan karo ee darawalka Linux ee chips-ka Realtek

Dareewalka ku jira kernel Linux rtlwifi loogu talagalay adapters-ka wireless-ka ee chips-ka Realtek la aqoonsaday nuglaanta (CVE-2019-17666), Kaas oo laga yaabo in laga faa'iidaysto si loo abaabulo fulinta code ee macnaha guud ee kernel-ka marka la dirayo xayndaabyo si gaar ah loo qaabeeyey.

Nuglaanta waxaa sababa qulqulka buuxdhaafka ah ee koodhka fulinaya qaabka P2P (Wifi-Direct). Marka la falanqeynayo meeraha Maya (Ogaysiis Maqnaanshaha) ma jiro wax hubin ah oo lagu eegayo cabbirka mid ka mid ah qiyamka, kaas oo u oggolaanaya in dabada xogta lagu qoro meel ka baxsan xuduudka kaydinta iyo in macluumaadka dib loogu qoro qaab-dhismeedka kernel-ka ee raacaya kaydinta.

Weerarka waxaa lagu fulin karaa iyadoo loo dirayo fiimyo si gaar ah loo nashqadeeyay nidaamka leh adabtarada shabakad firfircoon oo ku saleysan chip-ka Realtek ee taageeraya tignoolajiyada. Tooska Wi-Fi, kaas oo u oggolaanaya laba adapter-ka wireless in ay si toos ah u sameeyaan xiriir iyada oo aan lahayn meel laga galo. Si looga faa'iidaysto dhibaatada, weeraryahanku uma baahna in lagu xidho shabakadda wireless-ka, loomana baahna inuu sameeyo ficil kasta oo dhinaca isticmaalaha ah; way ku filan tahay weeraryahanku inuu ku dhex jiro aagga caymiska ee wireless-ka. calaamad.

Nooca shaqada ee ka faa'iidaysiga ayaa hadda ku xaddidan in uu meel fog ka keeno kernel-ku inuu shil galo, laakiin nuglaanshaha iman kara kama saarayo suurtagalnimada abaabulka fulinta koodka (malo-awaalku wali waa aragti kaliya, maadaama aysan jirin nooc ka faa'iidaysiga fulinta koodka. weli, laakiin cilmi-baarihii aqoonsaday dhibaatada ayaa hore u shaqeeyaa ku saabsan abuurkeeda).

Dhibaatadu waxay ka bilaabataa kernel-ka 3.12 (sida laga soo xigtay ilo kale, dhibaatadu waxay u muuqataa inay ka bilaabmayso kernel-ka 3.10), oo la sii daayay 2013kii. Hagaajinta hadda waxa kaliya oo lagu heli karaa foomka balastar. Qaybinta dhibaatadu waa mid aan la sixin.
Waxaad kula socon kartaa ciribtirka dayacanka ee qaybinta boggagan: Debian, SUSE/furanSUSE, RHEL, Ubuntu, Arch Linux, Fedora. Malaha sidoo kale baylahsan tahay saameeya iyo goobta Android.

Source: opennet.ru

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