{"id":42942,"date":"2020-02-17T14:41:56","date_gmt":"2020-02-17T11:41:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/obnovlenie-postgresql-s-ustraneniem-uyazvimosti-vypusk-sistemy-replikaczii-pgcat"},"modified":"2020-02-17T14:41:56","modified_gmt":"2020-02-17T11:41:56","slug":"obnovlenie-postgresql-s-ustraneniem-uyazvimosti-vypusk-sistemy-replikaczii-pgcat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/obnovlenie-postgresql-s-ustraneniem-uyazvimosti-vypusk-sistemy-replikaczii-pgcat","title":{"rendered":"Atualiza\u00e7\u00e3o do PostgreSQL com corre\u00e7\u00e3o de vulnerabilidade. Lan\u00e7amento do sistema de replica\u00e7\u00e3o pgcat","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.postgresql.org\/about\/news\/2011\/\">Formados<\/a><\/noindex> atualiza\u00e7\u00f5es corretivas para todos os ramos suportados do PostgreSQL: <noindex><a rel=\"nofollow\" href=\"https:\/\/www.postgresql.org\/docs\/current\/static\/release-12-2.html\">12.2<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.postgresql.org\/docs\/current\/static\/release-11-7.html\">11.7<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.postgresql.org\/docs\/current\/static\/release-10-12.html\">10.12<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/www.postgresql.org\/docs\/current\/static\/release-9-6-17.html\">9.6.17<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/www.postgresql.org\/docs\/current\/static\/release-9-5-21.html\">9.5.21<\/a><\/noindex> e <noindex><a rel=\"nofollow\" href=\"http:\/\/www.postgresql.org\/docs\/current\/static\/release-9-4-26.html\">9.4.26<\/a><\/noindex>. A vers\u00e3o 9.4.26 \u00e9 a final \u2014 a prepara\u00e7\u00e3o de atualiza\u00e7\u00f5es para a ramifica\u00e7\u00e3o 9.4 <noindex><a rel=\"nofollow\" href=\"http:\/\/www.postgresql.org\/support\/versioning\/\">encerrado<\/a><\/noindex>. As atualiza\u00e7\u00f5es para a ramifica\u00e7\u00e3o 9.5 ser\u00e3o formadas at\u00e9 fevereiro de 2021, 9.6 \u2014 at\u00e9 novembro de 2021, 10 \u2014 at\u00e9 novembro de 2022, 11 \u2014 at\u00e9 novembro de 2023, 12 \u2014 at\u00e9 novembro de 2024. <\/p>\n<p>Nas novas vers\u00f5es, 75 erros foram corrigidos e uma vulnerabilidade<br \/>\n(CVE-2020-1720), causada pela falta de verifica\u00e7\u00e3o de autoriza\u00e7\u00e3o ao executar o comando \u00abALTER \u2026 DEPENDS ON EXTENSION\u00bb. Sob certas circunst\u00e2ncias, a vulnerabilidade permite que um usu\u00e1rio n\u00e3o privilegiado exclua qualquer fun\u00e7\u00e3o, procedimento, vis\u00e3o materializada, \u00edndice ou gatilho. O ataque \u00e9 poss\u00edvel se o administrador instalar qualquer extens\u00e3o, e o usu\u00e1rio puder executar o comando CREATE ou convencer o propriet\u00e1rio da extens\u00e3o a executar o comando DROP EXTENSION.<\/p>\n<p>Al\u00e9m disso, podemos destacar o lan\u00e7amento de um novo aplicativo <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/kingluo\/pgcat\">pgcat<\/a><\/noindex>, que permite replicar dados entre v\u00e1rios servidores PostgreSQL. O programa suporta replica\u00e7\u00e3o l\u00f3gica atrav\u00e9s da transmiss\u00e3o e reprodu\u00e7\u00e3o em outro host dos comandos SQL executados no servidor principal, que resultam em altera\u00e7\u00f5es nos dados. O c\u00f3digo \u00e9 escrito na linguagem Go e <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/kingluo\/pgcat\">\u00e9 distribu\u00eddo<\/a><\/noindex> licenciado sob a Apache 2.0. As principais diferen\u00e7as em rela\u00e7\u00e3o ao mecanismo de replica\u00e7\u00e3o l\u00f3gica embutido s\u00e3o:<\/p>\n<ul>\n<li class=\"l\"> Suporte a todos os tipos de tabelas de destino (visualiza\u00e7\u00f5es, fdw (Foreign Data Wrapper), tabelas fragmentadas, tabelas distribu\u00eddas citus);\n<li class=\"l\"> Capacidade de redefinir nomes de tabelas (replica\u00e7\u00e3o de uma tabela para outra);\n<li class=\"l\"> Suporte \u00e0 replica\u00e7\u00e3o bidirecional atrav\u00e9s do envio apenas de altera\u00e7\u00f5es locais, ignorando replica\u00e7\u00f5es recebidas externamente;\n<li class=\"l\"> Exist\u00eancia de um sistema de resolu\u00e7\u00e3o de conflitos baseado no algoritmo LWW (last-writer-win);\n<li class=\"l\"> Possibilidade de manter informa\u00e7\u00f5es sobre o progresso da replica\u00e7\u00e3o e replica\u00e7\u00f5es n\u00e3o aplicadas em uma tabela separada, que pode ser usada para recupera\u00e7\u00e3o ap\u00f3s a reinicializa\u00e7\u00e3o de um n\u00f3 receptor temporariamente indispon\u00edvel.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52370\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u0444\u043e\u0440\u043c\u0438\u0440\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 \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0432\u0435\u0442\u043e\u043a PostgreSQL: 12.2, 11.7, 10.12, 9.6.17, 9.5.21 \u0438 9.4.26. \u0412\u044b\u043f\u0443\u0441\u043a 9.4.26 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0444\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u043c &#8212; \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043a\u0430 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u0432\u0435\u0442\u043a\u0438 9.4 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0430. \u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u0432\u0435\u0442\u043a\u0438 9.5 \u0431\u0443\u0434\u0443\u0442 \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043e \u0444\u0435\u0432\u0440\u0430\u043b\u044f 2021 \u0433., 9.6 &#8212; \u0434\u043e \u043d\u043e\u044f\u0431\u0440\u044f 2021 \u0433\u043e\u0434\u0430, 10 &#8212; \u0434\u043e \u043d\u043e\u044f\u0431\u0440\u044f 2022 \u0433\u043e\u0434\u0430, 11 &#8212; \u0434\u043e \u043d\u043e\u044f\u0431\u0440\u044f 2023 \u0433\u043e\u0434\u0430, 12 [&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":[],"tags":[],"class_list":["post-42942","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u0444\u043e\u0440\u043c\u0438\u0440\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 \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0432\u0435\u0442\u043e\u043a PostgreSQL:\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/pt\/blog\/obnovlenie-postgresql-s-ustraneniem-uyazvimosti-vypusk-sistemy-replikaczii-pgcat\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"pt_PT\" \/>\n\t\t<meta property=\"og:site_name\" content=\"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\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 PostgreSQL \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438. \u0412\u044b\u043f\u0443\u0441\u043a \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u0438 pgcat | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0421\u0444\u043e\u0440\u043c\u0438\u0440\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 \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0432\u0435\u0442\u043e\u043a PostgreSQL:\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/pt\/blog\/obnovlenie-postgresql-s-ustraneniem-uyazvimosti-vypusk-sistemy-replikaczii-pgcat\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2020-02-17T11:41:56+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2020-02-17T11:41:56+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Atualiza\u00e7\u00e3o do PostgreSQL com corre\u00e7\u00e3o de vulnerabilidade. 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