{"id":170698,"date":"2026-05-15T06:24:34","date_gmt":"2026-05-15T04:24:34","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-cpu-amd-zen-2-pozvolyayushhaya-povysit-privilegii-i-obojti-izolyacziyu-virtualnyh-mashin"},"modified":"2026-05-15T06:24:34","modified_gmt":"2026-05-15T04:24:34","slug":"uyazvimost-v-cpu-amd-zen-2-pozvolyayushhaya-povysit-privilegii-i-obojti-izolyacziyu-virtualnyh-mashin","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/uyazvimost-v-cpu-amd-zen-2-pozvolyayushhaya-povysit-privilegii-i-obojti-izolyacziyu-virtualnyh-mashin","title":{"rendered":"AMD Zen 2 CPU haavatavus, mis v\u00f5imaldab t\u00f5sta \u00f5igusi ja \u00fcletada virtuaalmasinate isolatsiooni","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

AMD paljastas teabe haavatavuse (CVE-2025-54518) kohta Zen 2 mikroarhitektuuril p\u00f5hinevates protsessorites, mis p\u00f5hjustab objekti koodide vahem\u00e4lu rikkumist. Edukas haavatavuse \u00e4ra kasutamine v\u00f5imaldab k\u00e4ivitada CPU k\u00e4ske k\u00f5rgema \u00f5iguse tasemega. Praktikas v\u00f5ib probleem potentsiaalselt v\u00f5imaldada \u00f5iguste t\u00f5stmist s\u00fcsteemis, n\u00e4iteks kasutaja ruumist saada tuumakoodide t\u00e4itmise \u00f5igused v\u00f5i juurdep\u00e4\u00e4s hostkeskkonnale virtuaalmasinast. <\/p>\n

Haavatavus tuvastati AMD t\u00f6\u00f6tajate poolt, r\u00fcnnaku \u00fcksikasju pole veel avaldatud. Teatada on, et probleem tuleneb valest isolatsioonist jagatud ressursside vahel objekti koodide vahem\u00e4lu toimingute k\u00e4igus. Rikkumise kaudu vahem\u00e4lu elementides v\u00f5ib r\u00fcndaja saavutada k\u00e4skude muutmise, mida t\u00e4idetakse teisel \u00f5iguse tasemel. <\/p>\n

Haavatavus esineb ainult AMD Zen2 mikroarhitektuuril p\u00f5hinevates protsessorites (Fam17h). Probleem m\u00f5jutab Xen h\u00fcperviisorit ja seda saab kasutada isoleerimise \u00fcletamiseks. Xen harudele vahemikus 4.17 kuni 4.21 on avaldatud plaastrid. Haavatavuse blokeerimise parandus on samuti edastatud k\u00e4itatava tuuma Linuxi jaoks. <\/p>\n

Desktoppide ja mobiilsete AMD Ryzen 3000, 4000, 5000, 7020, 7030 ja Threadripper PRO 3000 WX protsessoriseriides on haavatavus k\u00f5rvaldatud eelmise aasta s\u00fcgisel. AMD Ryzen Embedded V2000 sisseehitatud CPU-del on haavatavus k\u00f5rvaldatud detsembri l\u00f5pus. AMD EPYC 7002 seeria protsessorites p\u00fcsib probleem parandamata ja selle blokeerimist soovitatakse teha operatsioonis\u00fcsteemi tasandil.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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Haavatavuse eduka \u00e4rakasutamise korral on v\u00f5imalik t\u00e4ita CPU k\u00e4ske k\u00f5rgema privileegitasemega. Praktikas v\u00f5ib probleem potentsiaalselt v\u00f5imaldada s\u00fcsteemis privileegide t\u00f5stmist, n\u00e4iteks kasutajaruumi kaudu saavutada tuumaga \u00f5igustes koodi t\u00e4itmine v\u00f5i saada juurdep\u00e4\u00e4s","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/uyazvimost-v-cpu-amd-zen-2-pozvolyayushhaya-povysit-privilegii-i-obojti-izolyacziyu-virtualnyh-mashin","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 CPU AMD Zen 2, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0438 \u043e\u0431\u043e\u0439\u0442\u0438 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u043c\u0430\u0448\u0438\u043d | ProHoster","og:description":"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f AMD \u0440\u0430\u0441\u043a\u0440\u044b\u043b\u0430 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e\u0431 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2025-54518) \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 \u043d\u0430 \u0431\u0430\u0437\u0435 \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b Zen 2, \u0432\u044b\u0437\u044b\u0432\u0430\u044e\u0449\u0435\u0439 \u043f\u043e\u0432\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0435 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\u043a","og:url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/uyazvimost-v-cpu-amd-zen-2-pozvolyayushhaya-povysit-privilegii-i-obojti-izolyacziyu-virtualnyh-mashin","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2026-05-15T04:24:34+00:00","article:modified_time":"2026-05-15T04:24:34+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/170698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/comments?post=170698"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/170698\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/media?parent=170698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/categories?post=170698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/tags?post=170698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}