{"id":101089,"date":"2021-08-25T22:22:48","date_gmt":"2021-08-25T20:22:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-openssl-1-1-1l-s-ustraneniem-dvuh-uyazvimostej"},"modified":"2021-08-25T22:22:48","modified_gmt":"2021-08-25T20:22:48","slug":"obnovlenie-openssl-1-1-1l-s-ustraneniem-dvuh-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/obnovlenie-openssl-1-1-1l-s-ustraneniem-dvuh-uyazvimostej","title":{"rendered":"Atualiza\u00e7\u00e3o OpenSSL 1.1.1l com corre\u00e7\u00f5es de duas vulnerabilidades","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Est\u00e1 dispon\u00edvel uma vers\u00e3o corretiva da biblioteca criptogr\u00e1fica OpenSSL 1.1.1l que resolve duas vulnerabilidades:   <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-3711 \u2014 estouro de buffer no c\u00f3digo de implementa\u00e7\u00e3o do algoritmo criptogr\u00e1fico SM2 (comum na China), permitindo que um erro no c\u00e1lculo do tamanho do buffer sobrescreva at\u00e9 62 bytes na \u00e1rea fora do buffer. Um atacante pode potencialmente conseguir executar seu c\u00f3digo ou causar a falha do aplicativo ao enviar dados formatados de maneira especial para decodifica\u00e7\u00e3o em aplicativos que utilizam a fun\u00e7\u00e3o EVP_PKEY_decrypt() para descriptografar dados SM2.\n<li class=\"l\"> CVE-2021-3712 \u2014 estouro de buffer no c\u00f3digo de processamento de strings ASN.1, permitindo que um aplicativo falhe ou que o conte\u00fado da mem\u00f3ria do processo seja revelado (por exemplo, para descobrir chaves armazenadas na mem\u00f3ria), se um atacante conseguir de alguma forma criar uma string na estrutura interna ASN1_STRING que n\u00e3o termine com um caractere nulo e process\u00e1-la em fun\u00e7\u00f5es OpenSSL que realizam a sa\u00edda de certificados, como X509_aux_print(), X509_get1_email(), X509_REQ_get1_email() e X509_get1_ocsp().      <\/ul>\n<p>Novas vers\u00f5es da biblioteca LibreSSL 3.3.4 e 3.2.6 foram lan\u00e7adas simultaneamente, nas quais as vulnerabilidades n\u00e3o s\u00e3o mencionadas explicitamente, mas de acordo com a lista de mudan\u00e7as, a vulnerabilidade CVE-2021-3712 foi corrigida.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55683\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL 1.1.1l \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0434\u0432\u0443\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: CVE-2021-3711 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043a\u043e\u0434\u0435 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 SM2 (\u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0451\u043d \u0432 \u041a\u0438\u0442\u0430\u0435), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0435 \u0438\u0437-\u0437\u0430 \u043e\u0448\u0438\u0431\u043a\u0438 \u0432 \u0440\u0430\u0441\u0447\u0451\u0442\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0431\u0443\u0444\u0435\u0440\u0430 \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0434\u043e 62 \u0431\u0430\u0439\u0442 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0435\u0439 \u0431\u0443\u0444\u0435\u0440\u0430. \u0410\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0438\u043b\u0438 \u043a\u0440\u0430\u0445\u0430 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u0447\u0435\u0440\u0435\u0437 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0439 \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 [&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-101089","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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um estouro de buffer no c\u00f3digo que implementa o algoritmo criptogr\u00e1fico SM2.","canonical_url":"https:\/\/prohoster.info\/pt\/blog\/news\/obnovlenie-openssl-1-1-1l-s-ustraneniem-dvuh-uyazvimostej","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pt_PT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 OpenSSL 1.1.1l \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0434\u0432\u0443\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 | ProHoster","og:description":"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL 1.1.1l \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0434\u0432\u0443\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: CVE-2021-3711 - 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