{"id":100585,"date":"2021-06-23T10:22:42","date_gmt":"2021-06-23T08:22:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/oshibka-v-bind-9-16-17-privodyashhaya-k-nevernoj-obrabotke-simvola-w-v-dns-zaprosah"},"modified":"2021-06-23T10:22:42","modified_gmt":"2021-06-23T08:22:42","slug":"oshibka-v-bind-9-16-17-privodyashhaya-k-nevernoj-obrabotke-simvola-w-v-dns-zaprosah","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/oshibka-v-bind-9-16-17-privodyashhaya-k-nevernoj-obrabotke-simvola-w-v-dns-zaprosah","title":{"rendered":"Hiba a BIND 9.16.17-ben, amely helytelen\u00fcl kezeli a W karaktert a DNS lek\u00e9rdez\u00e9sekben","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Megjelentek a stabil BIND 9.16.18 DNS-szerver \u00e9s a fejleszt\u00e9s alatt \u00e1ll\u00f3 k\u00eds\u00e9rleti BIND 9.17.15 verzi\u00f3k jav\u00edt\u00f3friss\u00edt\u00e9sei, amelyekben kijav\u00edtott\u00e1k a s\u00falyos hib\u00e1t, amely a m\u00falt h\u00e9ten kiadott BIND 9.16.17 \u00e9s 9.17.14 verzi\u00f3kban jelentkezett (a kiad\u00e1sok ut\u00e1n egy nappal a fejleszt\u0151k figyelmeztett\u00e9k a felhaszn\u00e1l\u00f3kat a probl\u00e9ma l\u00e9tez\u00e9s\u00e9re, \u00e9s javasolt\u00e1k a 9.16.17 \u00e9s 9.17.14 verzi\u00f3k telep\u00edt\u00e9s\u00e9nek elker\u00fcl\u00e9s\u00e9t). <\/p>\n

A 9.16.17 \u00e9s 9.17.14-es verzi\u00f3kban a kis- \u00e9s nagybet\u0171s karakterek \u00e1tkonvert\u00e1l\u00f3 t\u00e1bl\u00e1zataiban (maptoupper \u00e9s maptolower) elmaradt a «w» karakter, ami a «W» \u00e9s «w» karakterek domain nevekben «\000»-re val\u00f3 \u00e1tkonvert\u00e1l\u00e1s\u00e1hoz \u00e9s helytelen v\u00e1laszok visszaad\u00e1s\u00e1hoz vezetett a maszk alapj\u00e1n t\u00f6rt\u00e9n\u0151 lek\u00e9rdez\u00e9sek sor\u00e1n. P\u00e9ld\u00e1ul, ha a DNS-z\u00f3n\u00e1ban volt egy «*.sub.test.local. 1 A 127.0.0.1″ bejegyz\u00e9s, az UVW.sub.test.local» n\u00e9v lek\u00e9rdez\u00e9se olyan v\u00e1laszt adott, amelyben az «uv\/000.sub.test.local» n\u00e9v szerepelt az «uvw.sub.test.local» helyett. <\/p>\n

Ezen k\u00edv\u00fcl probl\u00e9m\u00e1k mer\u00fcltek fel a «w» karakter «\000»-ra t\u00f6rt\u00e9n\u0151 csere sor\u00e1n a z\u00f3na dinamikus friss\u00edt\u00e9sekor, ha a «w» karakter case \u00e9rz\u00e9keny volt a lek\u00e9rdez\u00e9sben, a DNS-z\u00f3n\u00e1hoz k\u00e9pest. P\u00e9ld\u00e1ul, ha a z\u00f3n\u00e1ban a «WW.example» bejegyz\u00e9s volt, \u00e9s friss\u00edt\u00e9st k\u00fcldtek a «foo.ww.example.» n\u00e9vre, azt «foo.\000\000.example.» n\u00e9ven dolgozt\u00e1k fel. A karakterek cser\u00e9j\u00e9vel kapcsolatos probl\u00e9m\u00e1k akkor is felmer\u00fclhettek, amikor z\u00f3na\u00e1tviteli m\u0171veleteket hajtottak v\u00e9gre a primer DNS-szerverr\u0151l m\u00e1sodlagos DNS-szerverre. <\/p>\n

A 9.16.18 friss\u00edt\u00e9s kiad\u00e1sa k\u00e9slekedett, mivel tov\u00e1bbi k\u00e9t hiba is felmer\u00fclt, amelyek nem ker\u00fcltek jav\u00edt\u00e1sra a 9.16.18 \u00e9s 9.17.15 verzi\u00f3kban. Ezek a hib\u00e1k k\u00f6lcs\u00f6n\u00f6s blokkol\u00e1shoz vezetnek a inicializ\u00e1l\u00e1s sor\u00e1n, \u00e9s megjelennek azon konfigur\u00e1ci\u00f3kban, ahol a dnssec-policy-b\u00f3l ugyanolyan z\u00f3n\u00e1kat haszn\u00e1lnak, amelyek k\u00fcl\u00f6nb\u00f6z\u0151 n\u00e9zetekben (view) tal\u00e1lhat\u00f3k. Az ilyen be\u00e1ll\u00edt\u00e1ssal rendelkez\u0151 felhaszn\u00e1l\u00f3knak javasolt visszat\u00e9rni a BIND 9.16.16 verzi\u00f3hoz.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 BIND 9.16.18 \u0438 \u043d\u0430\u0445\u043e\u0434\u044f\u0449\u0435\u0439\u0441\u044f \u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 9.17.15, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0441\u0435\u0440\u044c\u0451\u0437\u043d\u0430\u044f \u043e\u0448\u0438\u0431\u043a\u0430, \u043f\u043e\u044f\u0432\u0438\u0432\u0448\u0430\u044f\u0441\u044f \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 BIND 9.16.17 \u0438 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[…]<\/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-100585","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Hiba a BIND 9.16.17-ben, ami hib\u00e1s \u201eW\u201d karakter kezel\u00e9shez vezet a DNS-k\u00e9r\u00e9sekben | ProHoster","description":"Megjelentek a stabil BIND 9.16.18 DNS-szerver \u00e9s a fejleszt\u00e9s alatt \u00e1ll\u00f3 k\u00eds\u00e9rleti BIND 9.17.15 verzi\u00f3k jav\u00edt\u00f3friss\u00edt\u00e9sei, amelyekben kijav\u00edtott\u00e1k a s\u00falyos hib\u00e1t, amely a BIND 9.16.17 verzi\u00f3kban 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