{"id":118103,"date":"2024-07-22T21:43:01","date_gmt":"2024-07-22T19:43:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-sistemnoj-biblioteki-glibc-2-40"},"modified":"2024-07-22T21:43:01","modified_gmt":"2024-07-22T19:43:01","slug":"vypusk-sistemnoj-biblioteki-glibc-2-40","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/vypusk-sistemnoj-biblioteki-glibc-2-40","title":{"rendered":"Glibc 2.40 s\u00fcsteemiteegi v\u00e4ljalase","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>P\u00e4rast kuue kuu arendust on v\u00e4lja antud GNU C Library (glibc) 2.40 s\u00fcsteemiteegi v\u00e4ljaanne, mis vastab t\u00e4ielikult ISO C11 ja POSIX.1-2017 standardite n\u00f5uetele. Uue v\u00e4ljaande koosseisu on lisatud parandused 68 arendajalt.     <\/p>\n<p>Glibc 2.40 teostatud t\u00e4iustustest v\u00f5ib m\u00e4rkida:   <\/p>\n<ul>\n<li class=\"l\"> Pealkirja faili math.h on lisatud uusi eksponentsiaalseid ja logaritmilisi funktsioone, mis on m\u00e4\u00e4ratletud C23 standardis: exp2m1, exp10m1.log2p1, log10p1 ja logp1. Funktsioonid on saadaval float, double, long double, _FloatN ja _FloatNx t\u00fc\u00fcpide variantides.\n<li class=\"l\"> Lisatud on makro _ISOC23_SOURCE, mis m\u00e4\u00e4ratleb C23 standardi (hetkel on glibcis rakendatud vaid osa C23 v\u00f5imalustest) pakutavate v\u00f5imaluste kasutamise. C23 kasutamine on samuti lubatud kompileerimisel, kui m\u00e4\u00e4ratakse GCC-s valikud -std=c23, -std=gnu23, -std=c2x v\u00f5i -std=gnu2x.\n<li class=\"l\"> Lisatud seadistus \u201eglibc.rtld.enable_secure\u201c, mis v\u00f5imaldab testimise k\u00e4igus k\u00e4itada programmi justkui see omaks kasutaja identifikaatori vahetamise lippu (setuid).\n<li class=\"l\"> Linuxi platvormil on pealkirja fail epoll.h uuendatud, et toetada uusi ioctl ja epolli struktuure, mis on lisatud Linuxi tuuma 6.9 versioonis.\n<li class=\"l\"> Funktsionaalsus, mis tuvastab v\u00f5imalikke puhvers\u00fcsteemi \u00fclevoolu ja turvalisusega seotud vigu stringide t\u00f6\u00f6tlemise ja m\u00e4lu haldamise funktsioonides (\u201e_FORTIFY_SOURCE\u201c), on kohandatud Glibc koostamiseks Clangi kompilaatoriga.\n<li class=\"l\"> Vektormatemaatiliste funktsioonide raamatukogus (libmvec) pakutakse funktsioonide acosh, asinh, atanh, cbrt, cosh, erf, erfc, hypot, pow, sinh ja tanh teostusi Aarch64 arhitektuuri jaoks.\n<li class=\"l\"> x86 s\u00fcsteemides on suurte andmekogude kirjutamise kiirendamiseks memset funktsiooni kaudu lubatud ajutiste puhverte kasutamine v\u00e4lja l\u00fclitada. Optimeerimine aktiveeritakse seadistuse \u201ex86_memset_non_temporal_threshold\u201c abil.\n<li class=\"l\"> Pealkirja failis stdbit.h olevad makrod, mis t\u00f6\u00f6tavad erinevate t\u00fc\u00fcpidega (type-generic), on GCC 14 kasutamisel muudetud, et kasutada sisseehitatud funktsioone __builtin_stdc_bit_ceil __int128 ja _BitInt(N) t\u00fc\u00fcpide operandi toetamiseks.\n<li class=\"l\"> Ajaluku- ja ajakontrolli struktuuride lastlog, utmp ja utmpx v\u00e4ljad on muudetud 32-bitise m\u00e4rgiga t\u00fc\u00fcbist ilma m\u00e4rgita t\u00fc\u00fcbiks, mis pikendab maksimaalse ajakontrolli ulatust aastast 2038 aastani 2106.\n<li class=\"l\"> Turbepuudused on k\u00f5rvaldatud:\n<ul>\n<li class=\"l\"> CVE-2024-2961 \u2014 puhvers\u00fcsteemi \u00fclevool ISO-2022-CN-EXT kodeeringusse vormindatud stringide konverteerimise ajal funktsiooni iconv(). Praktikas v\u00f5ib haavatavust kasutada kaugr\u00fcnnaku teostamiseks PHP rakendustes, mis toob kaasa koodi t\u00e4itmise.\n<li class=\"l\"> CVE-2024-33599 \u2014 puhvers\u00fcsteemi \u00fclevool netgroupi vahecache'i t\u00f6\u00f6tlusprotsessis nscd (Nime Teenuse Vahecache Daemon). Haavatavust saab kasutada, kui klient saadab spetsiaalselt vormindatud p\u00e4ringu.\n<li class=\"l\"> CVE-2024-33600 \u2014 nullviidendi de-referentseerimine nscd protsessis, mis v\u00f5ib p\u00f5hjustada avariilise l\u00f5petamise teatud p\u00e4ringute t\u00f6\u00f6tlemisel.\n<li class=\"l\"> CVE-2024-33601 \u2014 netgroupi vahecache'i t\u00f6\u00f6tluse viga v\u00f5ib p\u00f5hjustada nscd protsessi avariilist l\u00f5petamist m\u00e4luhalduse eba\u00f5nnestumise t\u00f5ttu.\n<li class=\"l\"> CVE-2024-33602 \u2014 m\u00e4lu kahjustamine netgroupi vahecache'i t\u00f6\u00f6tlemisel nscd protsessis.      <\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61594\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 GNU C Library (glibc) 2.40, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 ISO C11 \u0438 POSIX.1-2017. \u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u044b \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0442 68 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432. \u0418\u0437 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0432 Glibc 2.40 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u0439 \u043c\u043e\u0436\u043d\u043e \u043e\u0442\u043c\u0435\u0442\u0438\u0442\u044c: \u0412 \u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043e\u0447\u043d\u044b\u0439 \u0444\u0430\u0439\u043b math.h \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u044b \u043d\u043e\u0432\u044b\u0435 \u044d\u043a\u0441\u043f\u043e\u043d\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u0438 \u043b\u043e\u0433\u0430\u0440\u0438\u0444\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u0438, \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0435 \u0432 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0435 C23: exp2m1, exp10m1.log2p1, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-118103","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 GNU C Library (glibc) 2.40, \u043a\u043e\u0442\u043e\u0440\u0430\u044f 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