{"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\/nl\/blog\/news\/vypusk-sistemnoj-biblioteki-glibc-2-40","title":{"rendered":"Uitgave van de systeembibliotheek Glibc 2.40","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Na zes maanden ontwikkeling is de release van de GNU C Library (glibc) 2.40 gepubliceerd, die volledig voldoet aan de eisen van de ISO C11- en POSIX.1-2017-normen. De nieuwe release bevat correcties van 68 ontwikkelaars.     <\/p>\n<p>Enkele van de verbeteringen in Glibc 2.40 zijn:   <\/p>\n<ul>\n<li class=\"l\"> In het headerbestand math.h zijn nieuwe exponenti\u00eble en logaritmische functies toegevoegd, die zijn gedefinieerd in de C23-norm: exp2m1, exp10m1, log2p1, log10p1 en logp1. De functies zijn beschikbaar in varianten voor de types float, double, long double, _FloatN en _FloatNx.\n<li class=\"l\"> De macro _ISOC23_SOURCE is toegevoegd, die het gebruik van de mogelijkheden die in de C23-norm zijn voorgesteld, definieert (op dit moment zijn slechts een deel van de C23-faciliteiten ge\u00efmplementeerd in Glibc). Het gebruik van C23 kan ook worden ingeschakeld tijdens het compileren door het opgeven van de GCC-opties -std=c23, -std=gnu23, -std=c2x of -std=gnu2x.\n<li class=\"l\"> De instelling &#171;glibc.rtld.enable_secure&#187; is toegevoegd, waarmee programma's tijdens tests kunnen worden uitgevoerd alsof ze de setuid-vlag hebben.\n<li class=\"l\"> In de Linux-omgeving is het headerbestand epoll.h bijgewerkt ter ondersteuning van nieuwe ioctl en structuren van epoll die in de Linux-kernel 6.9 zijn verschenen.\n<li class=\"l\"> De functionaliteit voor het detecteren van mogelijke bufferoverlopen en gerelateerde beveiligingsfouten tijdens de uitvoering van functies voor stringverwerking en geheugenbeheer (&#171;_FORTIFY_SOURCE&#187;) is aangepast voor het bouwen van Glibc met behulp van de Clang-compiler.\n<li class=\"l\"> In de bibliotheek met vector wiskundige functies (libmvec) zijn implementaties van de functies acosh, asinh, atanh, cbrt, cosh, erf, erfc, hypot, pow, sinh en tanh aangeboden voor de architectuur Aarch64.\n<li class=\"l\"> Op x86-systemen is er de mogelijkheid om het gebruik van tijdelijke buffers uit te schakelen voor snellere schrijfsessies van grote datapunten in de memset-functie. Deze optimalisatie kan worden geactiveerd met de instelling &#171;x86_memset_non_temporal_threshold&#187;.\n<li class=\"l\"> Macro's in het headerbestand stdbit.h, die werken met verschillende types (type-generic), zijn bij gebruik van GCC 14 overgezet naar het gebruik van ingebouwde functies __builtin_stdc_bit_ceil voor ondersteuning van operandtypes __int128 en _BitInt(N).\n<li class=\"l\"> De velden met epoch-telwaarden in de structuren lastlog, utmp en utmpx zijn overgezet van het gebruik van een 32-bits gestructureerd type naar een ongetekend type, waardoor de maximale adresbare tijd door de teller is verlengd van 2038 tot 2106.\n<li class=\"l\"> Kwetsbaarheden opgelost:\n<ul>\n<li class=\"l\"> CVE-2024-2961  &#8212;  bufferoverflow bij de conversie van speciaal opgemaakte strings in de ISO-2022-CN-EXT-codering door de functie iconv(). In de praktijk kan deze kwetsbaarheid worden gebruikt voor een externe aanval op PHP-toepassingen, wat kan leiden tot het uitvoeren van code.\n<li class=\"l\"> CVE-2024-33599 &#8212; bufferoverflow in de code voor het werken met de netgroup-cache door het proces nscd (Name Service Cache Daemon). Deze kwetsbaarheid kan worden uitgebuit via een speciaal opgemaakt verzoek van de client.\n<li class=\"l\"> CVE-2024-33600 &#8212; dereferentie van een null-pointer in het nscd-proces, wat kan leiden tot een crash bij de verwerking van bepaalde verzoeken.\n<li class=\"l\"> CVE-2024-33601 &#8212; een fout bij het werken met de netgroup-cache kan leiden tot een crash van het nscd-proces door een geheugenallocatiefout.\n<li class=\"l\"> CVE-2024-33602 &#8212; geheugenbeschadiging bij het werken met de netgroup-cache in het nscd-proces.      <\/ul>\n<p>Bron: <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 5.0.3 - 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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