{"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\/hu\/blog\/news\/libressl-4-3-0","title":{"rendered":"LibreSSL 4.3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A LibreSSL projekt bejelentette a 4.3.0 verzi\u00f3 kiad\u00e1s\u00e1t, amely m\u00e1r el\u00e9rhet\u0151 az OpenBSD t\u00fckrein.<\/p>\n<p>Ez egy fejleszt\u00e9si kiad\u00e1s a 4.3.x \u00e1gon, ez\u00e9rt a fejleszt\u0151k arra k\u00e9rik a k\u00f6z\u00f6ss\u00e9get, hogy akt\u00edvan tesztelj\u00e9k. Tov\u00e1bbi API \u00e9s ABI v\u00e1ltoz\u00e1sok nem v\u00e1rhat\u00f3ak a 4.3 \u00e1gon.<\/p>\n<p>Ennek a verzi\u00f3nak a kulcsfontoss\u00e1g\u00fa \u00fajdons\u00e1ga a MLKEM768_X25519 posztkvantum kulcscsere-m\u00f3dszer t\u00e1mogat\u00e1sa a TLS-ben az IETF draft-ietf-tls-ecdhe-mlkem tervezet\u00e9nek megfelel\u0151en. Kijav\u00edtott\u00e1k az X.509 tan\u00fas\u00edtv\u00e1ny m\u00e9lys\u00e9gellen\u0151rz\u00e9s\u00e9ben fell\u00e9p\u0151 \"off-by-one\" hib\u00e1t, amely k\u00e1rt\u00e9kony k\u00f3d eset\u00e9n 4 byte mem\u00f3ria fel\u00fcl\u00edr\u00e1s\u00e1hoz vezetett. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/dts-prohoster\/\" title=\"szerverrel\" data-wpil-keyword-link=\"linked\">szerverrel<\/a> vagy kliens tan\u00fas\u00edtv\u00e1nyok ellen\u0151rz\u00e9s\u00e9nek enged\u00e9lyez\u00e9sekor. A maxim\u00e1lis m\u00e9lys\u00e9g most 32-re van korl\u00e1tozva. A probl\u00e9m\u00e1t a Calif.io c\u00e9g fedezte fel Claude-dal \u00e9s az Anthropic Research-el egy\u00fcttm\u0171k\u00f6dve.<\/p>\n<p>Bels\u0151 fejleszt\u00e9sek:<\/p>\n<ul>\n<li>Elt\u00e1vol\u00edtott\u00e1k az SSLv2 \u00e9s SSLv3\/TLS 1.0 t\u00e1mogat\u00e1s\u00e1b\u00f3l megmaradt elavult k\u00f3dr\u00e9szleteket.<\/li>\n<li>Az ec_point_cmp() \u00fajra lett \u00edrva.<\/li>\n<li>A DH_check() funkci\u00f3hoz gyors utat adtak hozz\u00e1 a j\u00f3l ismert DH pr\u00edmsz\u00e1mokhoz, bele\u00e9rtve az RFC 7919-ben szerepl\u0151 sz\u00e1mokat is.<\/li>\n<\/ul>\n<p>Kompatibilit\u00e1si v\u00e1ltoz\u00e1sok:<\/p>\n<ul>\n<li>T\u00f6bb, nem haszn\u00e1lt BN_* makr\u00f3t elt\u00e1vol\u00edtottak, amelyek nem informat\u00edv nevekkel (BN_LONG, BN_BITS4, BN_MASK2 stb.) rendelkeztek.<\/li>\n<li>Az openssl(1) cms m\u00e1r nem fogad el nem t\u00e1mogatott -compress \u00e9s -uncompress kulcsokat.<\/li>\n<li>PKCS7_NO_DUAL_CONTENT z\u00e1szl\u00f3 ker\u00fclt hozz\u00e1ad\u00e1sra a n\u00e9h\u00e1ny nyelvi k\u00f6t\u00e9shez val\u00f3 kompatibilis viselked\u00e9s \u00e9rdek\u00e9ben.<\/li>\n<\/ul>\n<p>Hibajav\u00edt\u00e1sok:<\/p>\n<ul>\n<li>Mem\u00f3riasziv\u00e1rg\u00e1sokat jav\u00edtottak a CMS_EncryptedData_encrypt() \u00e9s nref_nos() funkci\u00f3kban.<\/li>\n<li>Kijav\u00edtott\u00e1k a v\u00e9gz\u00e1r\u00f3 null\u00e1kkal rendelkez\u0151 bitl\u00e1ncok k\u00f3dol\u00e1s\u00e1t.<\/li>\n<li>Kijav\u00edtott\u00e1k a hib\u00e1t a PKCS#12 \u00e9s id\u0151b\u00e9lyeg-v\u00e1laszok elemz\u00e9sekor.<\/li>\n<li>Sz\u00e1mos hib\u00e1t jav\u00edtottak a libtls-ben (hosszellen\u0151rz\u00e9sek, hiba\u00fczenetek konzisztenci\u00e1ja).<\/li>\n<\/ul>\n<p>Egy\u00e9b:<\/p>\n<ul>\n<li>A libssl-be RSASSA-PSS algoritmus t\u00e1mogat\u00e1st adtak hozz\u00e1 OID-del.<\/li>\n<li>A nyilv\u00e1nos API-hoz hozz\u00e1adt\u00e1k az X509_VERIFY_PARAM_set_hostflags() \u00e9s SSL_SESSION_dup() funkci\u00f3kat.<\/li>\n<li>A BIGNUM most standard C99 t\u00edpusokat (uint64_t\/uint32_t) haszn\u00e1l, ami jav\u00edtja a probl\u00e9m\u00e1kat a 64 bites Windows rendszeren.<\/li>\n<\/ul>\n<p>Forr\u00e1s: <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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