{"id":82793,"date":"2020-05-25T07:41:55","date_gmt":"2020-05-25T05:41:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/70-problem-s-bezopasnostyu-v-chromium-vyzvany-oshibkami-pri-rabote-s-pamyatyu"},"modified":"2020-05-25T07:41:55","modified_gmt":"2020-05-25T05:41:55","slug":"70-problem-s-bezopasnostyu-v-chromium-vyzvany-oshibkami-pri-rabote-s-pamyatyu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/70-problem-s-bezopasnostyu-v-chromium-vyzvany-oshibkami-pri-rabote-s-pamyatyu","title":{"rendered":"Chromiumi 70% turvaprobleemidest on tingitud m\u00e4luhalduse vigadest","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Chromiumi projekti arendajad <noindex><a rel=\"nofollow\" href=\"https:\/\/www.chromium.org\/Home\/chromium-security\/memory-safety\">anal\u00fc\u00fcsisid<\/a><\/noindex> Kuna alates 2015. aastast on Chrome'i stabiilsetes versioonides tuvastatud 912 ohtlikku ja kriitilist haavatavust, on j\u00e4reldatud, et 70% neist on p\u00f5hjustatud m\u00e4luhaldusvigadest (poodiumide vigadest C\/C++-s). Pool neist probleemidest (36.1%) on p\u00f5hjustatud m\u00e4lu vabastamise j\u00e4rgsest p\u00fc\u00fcdest leida seotud m\u00e4lukohta (use-after-free).<br \/>\n<center><noindex><a rel=\"nofollow\" href=\"https:\/\/www.chromium.org\/_\/rsrc\/1589581287612\/Home\/chromium-security\/memory-safety\/piechart.png\"><img decoding=\"async\" alt=\"Chromiumi 70% turvaprobleemidest on tingitud m\u00e4luhalduse vigadest\" src=\"\/wp-content\/uploads\/2020\/05\/31912b956dc2548e17b682d29dbab909.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Chromiumi kavandamisel oli algselt <noindex><a rel=\"nofollow\" href=\"https:\/\/www.chromium.org\/Home\/chromium-security\/guts\">arvestatud<\/a><\/noindex>, et koodis v\u00f5ivad esineda vead, seet\u00f5ttu pandi suur r\u00f5hk liivakasti isolatsiooni rakendamisele haavatavuste tagaj\u00e4rgede piiramise jaoks. Praegu on selle tehnoloogia rakendamise v\u00f5imalused saavutanud oma potentsiaali piiri ning edasine protsesside jagamine pole ressursside tarbimise m\u00f5ttes m\u00f5ttekas. <\/p>\n<p>\u0414\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u044b Google \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442 &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/chromium.googlesource.com\/chromium\/src\/+\/master\/docs\/security\/rule-of-2.md\">kahe reegel<\/a><\/noindex>&#171;, \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u043b\u044e\u0431\u043e\u0439 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0439 \u043a\u043e\u0434 \u0434\u043e\u043b\u0436\u0435\u043d \u043f\u043e\u0434\u043f\u0430\u0434\u0430\u0442\u044c \u043d\u0435 \u0431\u043e\u043b\u044c\u0448\u0435, \u0447\u0435\u043c \u043f\u043e\u0434 \u0434\u0432\u0430 \u0443\u0441\u043b\u043e\u0432\u0438\u044f \u0438\u0437 \u0442\u0440\u0451\u0445: \u0440\u0430\u0431\u043e\u0442\u0430 \u0441 \u043d\u0435\u043f\u0440\u043e\u0432\u0435\u0440\u0435\u043d\u043d\u044b\u043c\u0438 \u0432\u0445\u043e\u0434\u043d\u044b\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u043c\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0435\u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0433\u043e \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f (C\/C++) \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0441 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u044b\u043c\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u044f\u043c\u0438. \u0418\u0437 \u044d\u0442\u043e\u0433\u043e \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0441\u043b\u0435\u0434\u0443\u0435\u0442, \u0447\u0442\u043e \u043a\u043e\u0434 \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0434\u043e\u043b\u0436\u0435\u043d \u043b\u0438\u0431\u043e \u0431\u044b\u0442\u044c \u0443\u0440\u0435\u0437\u0430\u043d \u0434\u043e \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0445 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0439 (\u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d), \u043b\u0438\u0431\u043e \u0431\u044b\u0442\u044c \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u043c \u044f\u0437\u044b\u043a\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f.<\/p>\n<p>Koodibaasi kaitse edendamiseks on k\u00e4ivitatud projekt, mille eesm\u00e4rk on v\u00e4ltida m\u00e4luhalduse vigu koodibaasis. T\u00f5stetakse esile kolm peamist l\u00e4henemist: C++ raamatukogude loomine m\u00e4lu turvaliseks haldamiseks, pr\u00fcgikorjaja kohaldamise laiendamine, riistvara kaitsemehhanismide rakendamine, <noindex><a rel=\"nofollow\" href=\"https:\/\/llvm.org\/devmtg\/2018-10\/slides\/Serebryany-Stepanov-Tsyrklevich-Memory-Tagging-Slides-LLVM-2018.pdf\">MTE<\/a><\/noindex> (Memory Tagging Extension) ja komponentide kirjutamine keeles, mis toetab m\u00e4lu turvalist haldamist (Java, Kotlin, JavaScript, Rust, Swift).<\/p>\n<p>Oodata on, et t\u00f6\u00f6 keskendub kahele suunale: <\/p>\n<ul>\n<li class=\"l\"> Oluline muudatus C++ arendusprotsessis, mis ei v\u00e4lista negatiivset m\u00f5ju j\u00f5udlusele (lisakontrollid ja m\u00e4lu koristamine). Soovitatakse kasutada koodis t\u00fc\u00fcp <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.google.com\/document\/d\/1pnnOAIz_DMWDI4oIOFoMAqLnf_MZ2GsrJNb_dbQ3ZBg\/edit#heading=h.jx7cpliyfer\">MiraclePtr<\/a><\/noindex>, mis v\u00e4hendab eksisteerivatest use-after-free klassi vigadest tingitud potentsiaalselt ohtlikke krahhe, ilma m\u00e4rkimisv\u00e4\u00e4rse negatiivse m\u00f5juta j\u00f5udlusele, m\u00e4lu tarbimisele ja stabiilsusele.\n<li class=\"l\"> Keeltes, mis on suunatud m\u00e4luga t\u00f6\u00f6tamise ohutuse kontrollimise tegemisele kompileerimise ajal (see v\u00e4listab koodi t\u00e4itmise ajal toimuvate kontrollide negatiivse m\u00f5ju j\u00f5udlusele, kuid toob kaasa t\u00e4iendavad kulud uue keele ja C++ koodi omavahelise koost\u00f6\u00f6 korraldamisel).\n<\/ul>\n<p>M\u00e4luga ohutu t\u00f6\u00f6tamise raamatukogude kasutamine on k\u00f5ige lihtsam, kuid v\u00e4hem t\u00f5hus meetod. Koodi \u00fcmberkirjutamine Rustis hinnatakse kui k\u00f5ige t\u00f5husamat, kuid ka v\u00e4ga kallist teed.<br \/>\n<center><noindex><a rel=\"nofollow\" href=\"https:\/\/a77db9aa-a-7b23c8ea-s-sites.googlegroups.com\/a\/chromium.org\/dev\/Home\/chromium-security\/memory-safety\/sat3CHOc8lXZbGicChW6w5Q.png?attachauth=ANoY7cqyfZiTko5osYGVMP1ewI31nrE7lTP8m8fXIDsqh42vdzKk9CPyjYMd54R7RUD3QviaGPZKpgWTOFblPaSIGPePPGlMbi9rN1ZbO4lhXjP7mfoJCt5i_m7cFFFesGuNIVU0hjjc7M-FTXLyjc_YqMxC7-NUPaFMZe_83_IuUY6frEvOHBZ-6AxVa-PU49aLScaDVt6z3SSF1krIhvKgjaZjUeI0hhgKDayLg13AFRHUidIJd5wnbvomNQyzuH3wD6DxMfh2lrQ6EK3hK7RTMw-eMeWAEw%3D%3D&#038;attredirects=0\"><img decoding=\"async\" alt=\"Chromiumi 70% turvaprobleemidest on tingitud m\u00e4luhalduse vigadest\" src=\"\/wp-content\/uploads\/2020\/05\/48aac9ae5a251323dddebf73dfa73286.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53019\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Chromium \u043f\u0440\u043e\u0430\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043b\u0438 912 \u043e\u043f\u0430\u0441\u043d\u044b\u0445 \u0438 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0432 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 Chrome \u0441 2015 \u0433\u043e\u0434\u0430, \u0438 \u043f\u0440\u0438\u0448\u043b\u0438 \u043a \u0432\u044b\u0432\u043e\u0434\u0443, \u0447\u0442\u043e 70% \u0438\u0437 \u043d\u0438\u0445 \u0431\u044b\u043b\u0438 \u0432\u044b\u0437\u0432\u0430\u043d\u044b \u043d\u0435\u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u043e\u0439 \u0441 \u043f\u0430\u043c\u044f\u0442\u044c\u044e (\u043e\u0448\u0438\u0431\u043a\u0430\u043c\u0438 \u043f\u0440\u0438 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f\u043c\u0438 \u0432 \u043a\u043e\u0434\u0435 \u043d\u0430 C\/C++). \u041f\u043e\u043b\u043e\u0432\u0438\u043d\u0430 \u0438\u0437 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c (36.1%) \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f\u043c\u0438 \u043a \u0431\u0443\u0444\u0435\u0440\u0443 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u0439 \u0441 \u043d\u0438\u043c \u043f\u0430\u043c\u044f\u0442\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":82794,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-82793","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Chromium \u043f\u0440\u043e\u0430\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043b\u0438 912 \u043e\u043f\u0430\u0441\u043d\u044b\u0445 \u0438 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, 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\u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f\u043c\u0438 \u043a \u0431\u0443\u0444\u0435\u0440\u0443 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u0439 \u0441 \u043d\u0438\u043c \u043f\u0430\u043c\u044f\u0442\u0438\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/70-problem-s-bezopasnostyu-v-chromium-vyzvany-oshibkami-pri-rabote-s-pamyatyu\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"et_EE\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd4770% \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0441 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c\u044e \u0432 Chromium \u0432\u044b\u0437\u0432\u0430\u043d\u044b \u043e\u0448\u0438\u0431\u043a\u0430\u043c\u0438 \u043f\u0440\u0438 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 \u043f\u0430\u043c\u044f\u0442\u044c\u044e | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Chromium \u043f\u0440\u043e\u0430\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043b\u0438 912 \u043e\u043f\u0430\u0441\u043d\u044b\u0445 \u0438 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