{"id":117327,"date":"2024-07-11T15:43:21","date_gmt":"2024-07-11T13:43:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-versiya-pochtovogo-servera-exim-4-98"},"modified":"2024-07-11T15:43:21","modified_gmt":"2024-07-11T13:43:21","slug":"novaya-versiya-pochtovogo-servera-exim-4-98","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/novaya-versiya-pochtovogo-servera-exim-4-98","title":{"rendered":"Nov\u00e1 verze po\u0161tovn\u00edho serveru Exim 4.98","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po osmi m\u011bs\u00edc\u00edch v\u00fdvoje byl zve\u0159ejn\u011bn release po\u0161tovn\u00edho serveru Exim 4.98, do kter\u00e9ho byly zahrnuty akumulovan\u00e9 opravy a p\u0159id\u00e1ny nov\u00e9 mo\u017enosti. K\u00f3d projektu je naps\u00e1n v jazyce C a je distribuov\u00e1n pod licenc\u00ed GPLv2+. Podle \u010dervnov\u00e9ho automatizovan\u00e9ho pr\u016fzkumu p\u0159ibli\u017en\u011b 400 tis\u00edc po\u0161tovn\u00edch server\u016f m\u00e1 Exim pod\u00edl 59,06 % (p\u0159ed rokem 55,93 %), Postfix se pou\u017e\u00edv\u00e1 na 34,68 % (37,40 %) po\u0161tovn\u00edch serverech, Sendmail \u2014 3,42 % (3,45 %), MailEnable \u2014 1,81 % (1,86 %), MDaemon \u2014 0,37 % (0,48 %), Microsoft Exchange \u2014 0,17 % (0,25 %).       <\/p>\n<p>  Hlavn\u00ed zm\u011bny:  <\/p>\n<ul>\n<li class=\"l\"> Byla odstran\u011bna zranitelnost (CVE-2024-39929), zp\u016fsoben\u00e1 nespr\u00e1vnou anal\u00fdzou n\u00e1zv\u016f soubor\u016f v po\u0161tovn\u00edch p\u0159\u00edloh\u00e1ch. Zranitelnost umo\u017e\u0148uje obej\u00edt filtry, kter\u00e9 pou\u017e\u00edvaj\u00ed prom\u011bnnou $mime_filename, a p\u0159edat spustiteln\u00e9 soubory v p\u0159\u00edloh\u00e1ch, a\u010dkoliv jsou blokov\u00e1ny v nastaven\u00ed.\n<li class=\"l\"> V ACL, aplikovateln\u00e9m na data, prom\u011bnn\u00fdm p\u0159\u00edkazu DATA, bylo povoleno pou\u017eit\u00ed podm\u00ednky dkim_status, kter\u00e1 umo\u017e\u0148uje vyhodnotit v\u00fdsledek kontroly prost\u0159ednictv\u00edm mechanismu DKIM (DomainKeys Identified Mail).\n<li class=\"l\"> P\u0159i aktivaci nastaven\u00ed dkim_verbose, kter\u00e9 zapisuje do logu dal\u0161\u00ed ladic\u00ed informace o DKIM, se zaji\u0161\u0165uje v\u00fdstup \u00fadaj\u016f o digit\u00e1ln\u00edch podpis\u00edch.\n<li class=\"l\"> V mo\u017enosti dkim_timestamps, kter\u00e1 \u0159\u00edd\u00ed zahrnut\u00ed informace o \u010dase do podpisu, je povoleno zad\u00e1n\u00ed hodnoty \u201e0\u201c pro p\u0159id\u00e1n\u00ed aktu\u00e1ln\u00edho \u010dasu.\n<li class=\"l\"> V mo\u017enosti recipients_max, kter\u00e1 ur\u010duje limit na po\u010det p\u0159\u00edjemc\u016f pro jednu zpr\u00e1vu, je povoleno pou\u017eit\u00ed z\u00e1stupn\u00fdch znak\u016f a \u0161ablon.\n<li class=\"l\"> P\u0159i testov\u00e1n\u00ed v\u00fdraz\u016f pomoc\u00ed p\u0159\u00edkazu \u201eexim -be\u201c byla poskytnuta mo\u017enost nastaven\u00ed tainted-hodnot (hodnoty z\u00edskan\u00e9 z vn\u011bj\u0161\u00edch zdroj\u016f, nap\u0159\u00edklad nastaven\u00e9 odes\u00edlatelem e-mailu).\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora zpracov\u00e1n\u00ed a odra\u017een\u00ed v log\u00e1ch ud\u00e1losti \u201edns:fail\u201c, kter\u00e1 vznik\u00e1 p\u0159i selh\u00e1n\u00ed po\u017eadavku na DNSBL seznamy.\n<li class=\"l\"> Do lookup-blok\u016f dsearch byla p\u0159id\u00e1na podpora vyhled\u00e1v\u00e1n\u00ed podle ne\u00fapln\u00e9 cest\u011b k souboru (\u201e${lookup {foo\/bar} dsearch,key=path {\/etc}}\u201c).\n<li class=\"l\"> Sou\u010d\u00e1st\u00ed je utilita mailtest pro kontrolu a diagnostiku SMTP p\u0159ipojen\u00ed.\n<li class=\"l\"> Byla implementov\u00e1na podpora pro SMTP roz\u0161\u00ed\u0159en\u00ed WELLKNOWN, pomoc\u00ed kter\u00e9ho m\u016f\u017ee SMTP server p\u0159ed\u00e1vat klientovi ve\u0159ejn\u00e9 informace, jako jsou kontaktn\u00ed \u00fadaje nebo ov\u011b\u0159ovac\u00ed parametry p\u0159i p\u0159\u00edjmu <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/ssl-sertifikat\/\"   title=\"TLS certifik\u00e1tu\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"952\">TLS certifik\u00e1tu<\/a>, pomoc\u00ed protokolu ACME.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost pou\u017eit\u00ed SQLite3 pro ulo\u017een\u00ed intern\u00edch datab\u00e1z\u00ed, vedle DBD, NDB, GBDM a TDB. Pro pou\u017eit\u00ed SQLite3 je p\u0159ed sestaven\u00edm v Local\/Makefile nutn\u00e9 zadat \u201eUSE_SQLITE = y\u201c a \u201eDBMLIB = -lsqlite3\u201c.        <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61527\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0432\u043e\u0441\u044c\u043c\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 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Exim 4.98, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u043d\u0435\u0441\u0435\u043d\u044b \u043d\u0430\u043a\u043e\u043f\u0438\u0432\u0448\u0438\u0435\u0441\u044f \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u044b \u043d\u043e\u0432\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2+. \u0412 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u0438\u044e\u043d\u044c\u0441\u043a\u0438\u043c \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u043e\u043f\u0440\u043e\u0441\u043e\u043c \u043e\u043a\u043e\u043b\u043e 400 \u0442\u044b\u0441\u044f\u0447 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, \u0434\u043e\u043b\u044f Exim \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 59.06% (\u0433\u043e\u0434 \u043d\u0430\u0437\u0430\u0434 55.93%), Postfix \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043d\u0430 34.68% (37.40%) \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, [&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-117327","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 \u0432\u043e\u0441\u044c\u043c\u0438 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