Ka letsatsi le leng, Intel e ile ea fana ka tsebiso mabapi le kabelo ea sekhetho sa semmuso sa Spoiler vulnerability. Ho ba kotsing ea Spoiler ho ile ha tsebahala khoeling e fetileng ka mor'a tlaleho ea litsebi tsa Worcester Polytechnic Institute e Massachusetts le Univesithi ea Lübeck (Jeremane). Haeba e le matšeliso afe kapa afe, Spoiler e tla thathamisoa ho datha ea ts'ireletso e le CVE-2019-0162 ea tlokotsi. Bakeng sa batho ba se nang tšepo, rea u tsebisa: Intel e ke ke ea lokolla li-patches ho fokotsa kotsi ea tlhaselo e sebelisa CVE-2019-0162. Ho ea ka k'hamphani, mekhoa e tloaelehileng ea ho loantša litlhaselo tsa li-channel tse ka thōko e ka sireletsa khahlanong le Spoiler.
Hlokomela hore ts'oaetso ea Spoiler (CVE-2019-0162) ka boeona ha e lumelle ho fumana lintlha tse amehang haholo ntle le tsebo ea mosebelisi. Sena ke sesebelisoa sa ho matlafatsa le ho etsa hore ho qhekella ho sebelisa ts'oaetso ea nako e telele ea Rowhammer ho ka etsahala. Tlhaselo ena ke mofuta oa tlhaselo ea kanale ea lehlakore mme e etsoa khahlano le memori ea DDR3 ka tlhahlobo ea ECC (Error Correction Code). Hape hoa khoneha hore memori ea DDR4 e nang le ECC le eona e kotsing ea ho ba kotsing ea Rowhammer, empa sena ha se so netefatsoe ka liteko. Leha ho le joalo, ntle le haeba re fositse ho hong, ho ne ho se melaetsa ka sena.
U sebelisa Spoiler, u ka amahanya liaterese tsa sebele le liaterese tsa 'mele mohopolong. Ka mantsoe a mang, utloisisa hore na ke lisele life tse khethehileng tsa memori tse hlokang ho hlaseloa ho sebelisoa Rowhammer ho khutlisa data mohopolong oa 'mele. Ho fetola likotoana tse tharo feela tsa data mohopolong ka nako ho feta ECC mme ho fa mohlaseli bolokolohi ba ho nka khato. Ho fihlella 'mapa oa liaterese, o tlameha ho ba le monyetla oa ho fihlella komporo ea mosebelisi ntle le tokelo. Boemo bona bo fokotsa kotsi ea Spoiler, empa ha e e felise. Ho ea ka litsebi, kotsi ea Spoiler ke lintlha tse 3,8 ho tse 10 tse ka khonehang.
Li-processor tsohle tsa Intel Core ho fihlela molokong oa pele li kotsing ea ho ba kotsing ea Spoiler. Ho fetola microcode ho e koala ho ka lebisa ho fokotseha ho hoholo ha ts'ebetso ea processor. "Kamora ho hlahloba ka hloko, Intel e entse qeto ea hore litšireletso tse teng tsa kernel tse kang KPTI [Kernel Memory Isolation] li fokotsa kotsi ea ho lutla ha data ka maemo a lehlohonolo. "Intel e khothalletsa hore basebelisi ba latele mekhoa e tloaelehileng ho fokotsa ts'ebeliso ea bofokoli bona ba [tlhaselo ea lehlakore]."
Source: 3dnews.ru
