{"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\/sk\/blog\/obnovlenie-postgresql-s-ustraneniem-uyazvimosti-vypusk-sistemy-replikaczii-pgcat","title":{"rendered":"Aktualiz\u00e1cia PostgreSQL s odstr\u00e1nen\u00edm zranite\u013enosti. Vydanie syst\u00e9mu replik\u00e1cie pgcat","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.postgresql.org\/about\/news\/2011\/\">Boli vytvoren\u00e9<\/a><\/noindex> opravy pre v\u0161etky podporovan\u00e9 vetvy 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> a <noindex><a rel=\"nofollow\" href=\"http:\/\/www.postgresql.org\/docs\/current\/static\/release-9-4-26.html\">9.4.26<\/a><\/noindex>. Verzia 9.4.26 je fin\u00e1lna &#8212; pr\u00edprava aktualiz\u00e1ci\u00ed pre vetvu 9.4 <noindex><a rel=\"nofollow\" href=\"http:\/\/www.postgresql.org\/support\/versioning\/\">ukon\u010den\u00e1<\/a><\/noindex>. Aktualiz\u00e1cie pre vetvu 9.5 sa bud\u00fa vytv\u00e1ra\u0165 do febru\u00e1ra 2021, 9.6 &#8212; do novembra 2021, 10 &#8212; do novembra 2022, 11 &#8212; do novembra 2023, 12 &#8212; do novembra 2024. <\/p>\n<p>V nov\u00fdch verzi\u00e1ch bolo opraven\u00fdch 75 ch\u00fdb a odstr\u00e1nen\u00e1 zranite\u013enos\u0165<br \/>\n(CVE-2020-1720), sp\u00f4soben\u00e1 nedostatkom overovania autoriz\u00e1cie pri vykon\u00e1van\u00ed pr\u00edkazu &#171;ALTER &#8230; DEPENDS ON EXTENSION&#187;. Za ur\u010dit\u00fdch okolnost\u00ed zranite\u013enos\u0165 umo\u017e\u0148uje neopr\u00e1vnen\u00e9mu pou\u017e\u00edvate\u013eovi odstr\u00e1ni\u0165 ak\u00fako\u013evek funkciu, proced\u00faru, materializovan\u00fd poh\u013ead, index alebo sp\u00fa\u0161\u0165a\u010d. \u00datok je mo\u017en\u00fd, ak administr\u00e1tor nain\u0161taloval ak\u00e9ko\u013evek roz\u0161\u00edrenie, a pou\u017e\u00edvate\u013e m\u00f4\u017ee vykona\u0165 pr\u00edkaz CREATE alebo sa podar\u00ed presved\u010di\u0165 vlastn\u00edka roz\u0161\u00edrenia, aby vykonal pr\u00edkaz DROP EXTENSION.<\/p>\n<p>\u010ealej m\u00f4\u017eeme spomen\u00fa\u0165 vznik novej aplik\u00e1cie <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/kingluo\/pgcat\">pgcat<\/a><\/noindex>, ktor\u00e1 umo\u017e\u0148uje replik\u00e1ciu d\u00e1t medzi nieko\u013ek\u00fdmi servermi PostgreSQL. Program podporuje logick\u00fa replik\u00e1ciu prostredn\u00edctvom prenosu a reprodukcie na inom hostite\u013eovi toku vykon\u00e1van\u00fdch SQL pr\u00edkazov na hlavnom serveri, ktor\u00e9 ved\u00fa k zmene d\u00e1t. K\u00f3d je nap\u00edsan\u00fd v jazyku Go a <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/kingluo\/pgcat\">distribuovan\u00fd<\/a><\/noindex> pod licenciou Apache 2.0. Hlavn\u00e9 rozdiely od vstavan\u00e9ho mechanizmu logickej replik\u00e1cie:<\/p>\n<ul>\n<li class=\"l\"> Podpora ak\u00fdchko\u013evek typov cie\u013eov\u00fdch tabuliek (poh\u013eady, fdw (Foreign Data Wrapper), segmentovan\u00e9 tabu\u013eky, distribuovan\u00e9 tabu\u013eky citus);\n<li class=\"l\"> Mo\u017enos\u0165 predefinovania n\u00e1zvov tabuliek (replik\u00e1cia z jednej tabu\u013eky do druhej);\n<li class=\"l\"> Podpora obojstrannej replik\u00e1cie prostredn\u00edctvom pren\u00e1\u0161ania iba lok\u00e1lnych zmien s ignorovan\u00edm replik\u00e1ci\u00ed prich\u00e1dzaj\u00facich zvonka;\n<li class=\"l\"> Existencia syst\u00e9mu rie\u0161enia konfliktov zalo\u017een\u00e9ho na algoritme LWW (last-writer-win);\n<li class=\"l\"> Mo\u017enos\u0165 uchov\u00e1vania inform\u00e1ci\u00ed o priebehu replik\u00e1cie a neuplatnen\u00fdch replik\u00e1ch v samostatnej tabu\u013eke, ktor\u00fa je mo\u017en\u00e9 pou\u017ei\u0165 pre obnovenie po op\u00e4tovnom spusten\u00ed do\u010dasne nedostupn\u00e9ho prij\u00edmaj\u00faceho uzla.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <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 5.0.4 - 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\/sk\/blog\/obnovlenie-postgresql-s-ustraneniem-uyazvimosti-vypusk-sistemy-replikaczii-pgcat\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.4\" \/>\n\t\t<meta property=\"og:locale\" content=\"sk_SK\" \/>\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\/sk\/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\udd47Aktualiz\u00e1cia PostgreSQL so odstr\u00e1nen\u00edm zranite\u013enosti. 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