{"id":104508,"date":"2022-06-26T09:37:05","date_gmt":"2022-06-26T07:37:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-versiya-pochtovogo-servera-exim-4-96"},"modified":"2022-06-26T09:37:05","modified_gmt":"2022-06-26T07:37:05","slug":"novaya-versiya-pochtovogo-servera-exim-4-96","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/novaya-versiya-pochtovogo-servera-exim-4-96","title":{"rendered":"Nov\u00e1 verze po\u0161tovn\u00edho serveru Exim 4.96","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byl vyd\u00e1n e-mailov\u00fd server Exim 4.96, do kter\u00e9ho byly zahrnuty vy\u0159e\u0161en\u00e9 opravy a p\u0159id\u00e1ny nov\u00e9 funkce. Podle kv\u011btnov\u00e9ho automatizovan\u00e9ho pr\u016fzkumu p\u0159ibli\u017en\u011b 800 tis\u00edc e-mailov\u00fdch server\u016f m\u00e1 Exim pod\u00edl 59,59 % (p\u0159ed rokem 59,15 %), Postfix se pou\u017e\u00edv\u00e1 na 33,64 % (33,76 %) e-mailov\u00fdch serverech, Sendmail \u2014 3,55 % (3,55 %), MailEnable \u2014 1,93 % (2,02 %), MDaemon \u2014 0,45 % (0,56 %), Microsoft Exchange \u2014 0,23 % (0,30 %).     <\/p>\n<p>Hlavn\u00ed zm\u011bny:  <\/p>\n<ul>\n<li class=\"l\"> V ACL byla zavedena nov\u00e1 podm\u00ednka \u201eseen\u201c, kter\u00e1 m\u016f\u017ee b\u00fdt pou\u017eita k ov\u011b\u0159ov\u00e1n\u00ed p\u0159edchoz\u00ed ud\u00e1losti spojen\u00fdch s u\u017eivateli a hostiteli. Nov\u00e1 podm\u00ednka usnad\u0148uje pr\u00e1ci se \u0161ed\u00fdmi seznamy, nap\u0159\u00edklad p\u0159i vytvo\u0159en\u00ed nejjednodu\u0161\u0161\u00edho \u0161ed\u00e9ho seznamu pro povolen\u00ed opakovan\u00e9ho pokusu o p\u0159ipojen\u00ed lze pou\u017e\u00edt ACL \u201eseen = -5m \/ key=${sender_host_address}_$local_part@$domain\u201c.\n<li class=\"l\"> Byla p\u0159id\u00e1na \u201emask_n\u201c, varianta oper\u00e1toru \u201emask\u201c, kter\u00e1 manipuluje s normalizovan\u00fdmi adresami IPv6 (s pou\u017eit\u00edm dvojte\u010dek a bez balen\u00ed).\n<li class=\"l\"> Do utilit exim_dumpdb a exim_fixdb byla p\u0159id\u00e1na mo\u017enost \u2018-z\u2019 pro vracen\u00ed \u010dasu bez ohledu na \u010dasov\u00e9 p\u00e1smo (UTC);\n<li class=\"l\"> Ve spou\u0161t\u011bn\u00e9m procesu bylo implementov\u00e1no ud\u00e1losti, kter\u00e9 se vypisuj\u00ed p\u0159i selh\u00e1n\u00ed TLS p\u0159ipojen\u00ed.\n<li class=\"l\"> Do re\u017eimu lad\u011bn\u00ed ACL (\u201econtrol = debug\u201c) byly p\u0159id\u00e1ny mo\u017enosti \u201estop\u201c, \u201epretrigger\u201c a \u201etrigger\u201c, kter\u00e9 \u0159\u00edd\u00ed v\u00fdstup do lad\u00edc\u00edho logu.\n<li class=\"l\"> Bylo p\u0159id\u00e1no ov\u011b\u0159en\u00ed escapov\u00e1n\u00ed speci\u00e1ln\u00edch znak\u016f v lookup dotazech, pokud se v dotazu pou\u017e\u00edvaj\u00ed data z\u00edskan\u00e1 z vn\u011bj\u0161\u00edch zdroj\u016f (\u201etainted\u201c). Pokud nejsou znaky escapov\u00e1ny, informace o probl\u00e9mu se zat\u00edm pouze odr\u00e1\u017e\u00ed v logu, ale v budouc\u00edch vyd\u00e1n\u00edch to povede k chyb\u011b.\n<li class=\"l\"> Byla odstran\u011bna mo\u017enost \u201eallow_insecure_tainted_data\u201c, kter\u00e1 umo\u017e\u0148ovala zak\u00e1zat zobrazen\u00ed chyby p\u0159i nebezpe\u010dn\u00e9m escapov\u00e1n\u00ed speci\u00e1ln\u00edch znak\u016f v datech. Tak\u00e9 byla ukon\u010dena podpora log_selector \u201etaint\u201c, kter\u00e1 umo\u017e\u0148ovala zak\u00e1zat zobrazen\u00ed varov\u00e1n\u00ed v logu o probl\u00e9mech s escapov\u00e1n\u00edm.      <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57409\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Exim 4.96, \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. \u0412 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043c\u0430\u0439\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 800 \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 59.59% (\u0433\u043e\u0434 \u043d\u0430\u0437\u0430\u0434 59.15%), Postfix \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043d\u0430 33.64% (33.76%) \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, Sendmail &#8212; 3.55% (3.55%), MailEnable &#8212; 1.93% (2.02%), MDaemon &#8212; 0.45% (0.56%), Microsoft Exchange &#8212; [&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-104508","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=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Exim 4.96, \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 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