{"id":169694,"date":"2026-04-21T18:24:39","date_gmt":"2026-04-21T16:24:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/libressl-4-3-0"},"modified":"2026-04-21T18:24:39","modified_gmt":"2026-04-21T16:24:39","slug":"libressl-4-3-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/libressl-4-3-0","title":{"rendered":"LibreSSL 4.3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Projekt LibreSSL ozn\u00e1mil vyd\u00e1n\u00ed verze 4.3.0, kter\u00e1 je ji\u017e dostupn\u00e1 na zrcadlech OpenBSD.<\/p>\n<p>Toto je v\u00fdvojov\u00e9 vyd\u00e1n\u00ed pro v\u011btev 4.3.x, proto v\u00fdvoj\u00e1\u0159i vyz\u00fdvaj\u00ed komunitu k aktivn\u00edmu testov\u00e1n\u00ed. Dal\u0161\u00ed zm\u011bny API a ABI v v\u011btvi 4.3 nejsou pl\u00e1nov\u00e1ny.<\/p>\n<p>Kl\u00ed\u010dov\u00fdm nov\u00fdm prvkem t\u00e9to verze byla podpora postkvantov\u00e9 metody v\u00fdm\u011bny kl\u00ed\u010d\u016f MLKEM768_X25519 v TLS v souladu s n\u00e1vrhem IETF draft-ietf-tls-ecdhe-mlkem. Opraveno bylo \"off-by-one\" chyby ve verifikaci hloubky certifik\u00e1tu X.509, kter\u00e9 mohlo v\u00e9st k p\u0159eps\u00e1n\u00ed 4 bajt\u016f v pam\u011bti p\u0159i pr\u00e1ci se \u0161kodliv\u00fdm <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-prohoster\/\" title=\"serverem\" data-wpil-keyword-link=\"linked\">serverem<\/a> nebo p\u0159i povolen\u00e9 verifikaci klientsk\u00fdch certifik\u00e1t\u016f. Maxim\u00e1ln\u00ed hloubka je nyn\u00ed omezena na 32. Probl\u00e9m byl zji\u0161t\u011bn spole\u010dnost\u00ed Calif.io ve spolupr\u00e1ci s Claude a Anthropic Research.<\/p>\n<p>Intern\u00ed vylep\u0161en\u00ed:<\/p>\n<ul>\n<li>Byly odstran\u011bny zastaral\u00e9 k\u00f3dy, kter\u00e9 zbyly od podpory SSLv2 a SSLv3\/TLS 1.0.<\/li>\n<li>ec_point_cmp() byla p\u0159epracov\u00e1na.<\/li>\n<li>Do DH_check() byla p\u0159id\u00e1na rychl\u00e1 cesta pro dob\u0159e zn\u00e1m\u00e1 prvo\u010d\u00edsla DH, v\u010detn\u011b \u010d\u00edsel z RFC 7919.<\/li>\n<\/ul>\n<p>Zm\u011bny vz\u00e1jemn\u00e9 kompatibility:<\/p>\n<ul>\n<li>Bylo odstran\u011bno mnoho nepou\u017e\u00edvan\u00fdch makr\u016f BN_* s neinformativn\u00edmi n\u00e1zvy (BN_LONG, BN_BITS4, BN_MASK2 atd.).<\/li>\n<li>openssl(1) cms ji\u017e nep\u0159ij\u00edm\u00e1 nepodporovan\u00e9 kl\u00ed\u010de -compress a -uncompress.<\/li>\n<li>Byl p\u0159id\u00e1n p\u0159\u00edznak PKCS7_NO_DUAL_CONTENT pro kompatibiln\u00ed chov\u00e1n\u00ed s n\u011bkter\u00fdmi jazykov\u00fdmi vazbami.<\/li>\n<\/ul>\n<p>Opravy chyb:<\/p>\n<ul>\n<li>Byly odstran\u011bny \u00faniky pam\u011bti v CMS_EncryptedData_encrypt() a nref_nos().<\/li>\n<li>Bylo opraveno k\u00f3dov\u00e1n\u00ed bitov\u00fdch \u0159et\u011bzc\u016f se z\u00e1v\u011bre\u010dn\u00fdmi nulami.<\/li>\n<li>Bylo odstran\u011bno p\u00e1dy p\u0159i anal\u00fdze PKCS#12 a odpov\u011bd\u00ed na \u010dasov\u00e9 raz\u00edtko.<\/li>\n<li>Opraveno bylo mnoho chyb v libtls (kontroly d\u00e9lky, konzistence chybov\u00fdch zpr\u00e1v).<\/li>\n<\/ul>\n<p>Ostatn\u00ed:<\/p>\n<ul>\n<li>Do libssl byla p\u0159id\u00e1na podpora algoritmu RSASSA-PSS s OID.<\/li>\n<li>Do ve\u0159ejn\u00e9ho API byly p\u0159id\u00e1ny funkce X509_VERIFY_PARAM_set_hostflags() a SSL_SESSION_dup().<\/li>\n<li>BIGNUM nyn\u00ed pou\u017e\u00edv\u00e1 standardn\u00ed typy C99 (uint64_t\/uint32_t), co\u017e opravuje probl\u00e9my na 64-bitov\u00e9m Windows.<\/li>\n<\/ul>\n<p>Zdroj: <a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/bsd\/18270274\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0435\u043a\u0442 LibreSSL \u043e\u0431\u044a\u044f\u0432\u0438\u043b \u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0435 \u0432\u0435\u0440\u0441\u0438\u0438 4.3.0, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0443\u0436\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u043d\u0430 \u0437\u0435\u0440\u043a\u0430\u043b\u0430\u0445 OpenBSD. \u042d\u0442\u043e development-\u0432\u044b\u043f\u0443\u0441\u043a \u0434\u043b\u044f \u0432\u0435\u0442\u043a\u0438 4.3.x, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u0438\u0437\u044b\u0432\u0430\u044e\u0442 \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u043a \u0430\u043a\u0442\u0438\u0432\u043d\u043e\u043c\u0443 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e. \u0414\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0438\u0445 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 API \u0438 ABI \u0432 \u0432\u0435\u0442\u043a\u0435 4.3 \u043d\u0435 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u043c \u043d\u043e\u0432\u043e\u0432\u0432\u0435\u0434\u0435\u043d\u0438\u0435\u043c \u044d\u0442\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0441\u0442\u0430\u043b\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u043e\u0441\u0442\u043a\u0432\u0430\u043d\u0442\u043e\u0432\u043e\u0433\u043e \u043c\u0435\u0442\u043e\u0434\u0430 \u043e\u0431\u043c\u0435\u043d\u0430 \u043a\u043b\u044e\u0447\u0430\u043c\u0438 MLKEM768_X25519 \u0432 TLS \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u0447\u0435\u0440\u043d\u043e\u0432\u0438\u043a\u043e\u043c IETF draft-ietf-tls-ecdhe-mlkem. \u0423\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-169694","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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