{"id":104087,"date":"2022-05-19T03:36:51","date_gmt":"2022-05-19T01:36:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-dns-servera-bind-c-ustraneniem-uyazvimosti-v-realizaczii-dns-over-https"},"modified":"2022-05-19T03:36:51","modified_gmt":"2022-05-19T01:36:51","slug":"obnovlenie-dns-servera-bind-c-ustraneniem-uyazvimosti-v-realizaczii-dns-over-https","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/obnovlenie-dns-servera-bind-c-ustraneniem-uyazvimosti-v-realizaczii-dns-over-https","title":{"rendered":"Opdatering af DNS-serveren BIND med udbedring af s\u00e5rbarhed i implementeringen af DNS-over-HTTPS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Korrigerende opdateringer er offentliggjort for de stabile versioner af DNS-serveren BIND 9.16.28 og 9.18.3 samt en ny udgave af den eksperimentelle version 9.19.1. I versionerne 9.18.3 og 9.19.1 er der blevet rettet en s\u00e5rbarhed (CVE-2022-1183) i implementeringen af DNS-over-HTTPS-mekanismen, der har v\u00e6ret underst\u00f8ttet siden version 9.18. S\u00e5rbarheden f\u00f8rer til, at named-processen afsluttes uventet, hvis TLS-forbindelsen til handleren baseret p\u00e5 HTTP afbrydes tidligt. Problemet vedr\u00f8rer kun servere<\/a>, der h\u00e5ndterer DNS over HTTPS (DoH)-anmodninger. Servere, der modtager anmodninger via DNS over TLS (DoT) og ikke bruger DoH, er ikke ber\u00f8rt af problemet. <\/p>\n

I version 9.18.3 er der ogs\u00e5 tilf\u00f8jet flere funktionelle forbedringer. Der er tilf\u00f8jet underst\u00f8ttelse af den anden version af zoneskataloget (\"Catalog Zones\"), som er defineret i det femte udkast til IETF-specifikationen. Zoneskataloget tilbyder en ny metode til vedligeholdelse af sekund\u00e6re DNS-servere, hvor der i stedet for at definere individuelle poster for hver sekund\u00e6r zone p\u00e5 den sekund\u00e6re server, organiseres en overf\u00f8rsel af et bestemt s\u00e6t sekund\u00e6re zoner mellem de prim\u00e6re og sekund\u00e6re servere. Det vil sige, ved at konfigurere katalogoverf\u00f8rslen p\u00e5 samme m\u00e5de som overf\u00f8rslen af individuelle zoner, vil de zoner, der oprettes p\u00e5 den prim\u00e6re server og m\u00e6rkes som tilh\u00f8rende kataloget, automatisk blive oprettet p\u00e5 den sekund\u00e6re server uden behov for at redigere konfigurationsfiler. <\/p>\n

I den nye version er der ogs\u00e5 tilf\u00f8jet underst\u00f8ttelse af de udvidede fejlkoder \"Stale Answer\" og \"Stale NXDOMAIN Answer\", der udstedes, n\u00e5r et for\u00e6ldet svar returneres fra cachen. I named og dig er der indbygget en mulighed for verifikation af eksterne TLS-certifikater<\/a>, som kan bruges til at organisere stram eller samarbejdsvillig autentificering baseret p\u00e5 TLS (RFC 9103).
\n
Kilde: 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\u044b\u0445 \u0432\u0435\u0442\u043e\u043a DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 BIND 9.16.28 \u0438 9.18.3, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 9.19.1. \u0412 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 9.18.3 \u0438 9.19.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-1183) \u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 DNS-over-HTTPS, 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