{"id":52319,"date":"2020-02-18T08:41:57","date_gmt":"2020-02-18T05:41:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/uyazvimost-v-gipervizore-vmm-razvivaemom-proektom-openbsd"},"modified":"2020-02-18T08:41:57","modified_gmt":"2020-02-18T05:41:57","slug":"uyazvimost-v-gipervizore-vmm-razvivaemom-proektom-openbsd","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/uyazvimost-v-gipervizore-vmm-razvivaemom-proektom-openbsd","title":{"rendered":"Vulnerabiliteti n\u00eb hipervizorin VMM, i zhvilluar nga projekti OpenBSD","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>N\u00eb hipervizorin e ofruar n\u00eb OpenBSD <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=45316\">VMM<\/a><\/noindex> u identifikua <noindex><a rel=\"nofollow\" href=\"https:\/\/marc.info\/?l=openbsd-tech&#038;m=158176939604512&#038;w=2\">vulnerabiliteti<\/a><\/noindex>, q\u00eb lejon manipulimin nga ana e sistemit host p\u00ebr t\u00eb arritur rip\u00ebrkthimin e p\u00ebrmbajtjes s\u00eb zonave t\u00eb memories s\u00eb b\u00ebrtham\u00ebs s\u00eb ambientit host. Problemi shkaktohet nga fakti se nj\u00eb pjes\u00eb e adresave fizike t\u00eb sistemit host (GPA, Adresa Fizike e Mysafirit) pasqyrohet n\u00eb hap\u00ebsir\u00ebn adresore virtuale t\u00eb b\u00ebrtham\u00ebs (KVA), por p\u00ebr GPA nuk aplikohet mbrojtje nga shkrimi n\u00eb zonat KVA t\u00eb markuara vet\u00ebm p\u00ebr lexim. P\u00ebr shkak t\u00eb munges\u00ebs s\u00eb kontrolleve t\u00eb nevojshme n\u00eb funksionin evmm_update_pvclock(), mund t\u00eb arrihet kalimi i adresave KVA t\u00eb sistemit host n\u00eb thirrjen pmap dhe t\u00eb rip\u00ebrkryhet p\u00ebrmbajtja e memorjes s\u00eb b\u00ebrtham\u00ebs.<\/p>\n<p>Shtes\u00eb: Zhvilluesit e OpenBSD publikuan <noindex><a rel=\"nofollow\" href=\"https:\/\/ftp.openbsd.org\/pub\/OpenBSD\/patches\/6.6\/common\/020_vmm_pvclock.patch.sig\">patch<\/a><\/noindex> nj\u00eb p\u00ebrdit\u00ebsim p\u00ebr t\u00eb rregulluar k\u00ebt\u00eb dob\u00ebsi.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Burimi: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52378\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u043e\u043c \u0432 OpenBSD \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0435 VMM \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0447\u0435\u0440\u0435\u0437 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0433\u043e\u0441\u0442\u0435\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0438 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e \u043e\u0431\u043b\u0430\u0441\u0442\u0435\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 \u044f\u0434\u0440\u0430 host-\u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u0442\u0435\u043c, \u0447\u0442\u043e \u0447\u0430\u0441\u0442\u044c \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0430\u0434\u0440\u0435\u0441\u043e\u0432 \u0433\u043e\u0441\u0442\u0435\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b (GPA, Guest Physical Address) \u043e\u0442\u0440\u0430\u0436\u0435\u043d\u0430 \u0432 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0435 \u0430\u0434\u0440\u0435\u0441\u043d\u043e\u0435 \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u043e \u044f\u0434\u0440\u0430 (KVA), \u043d\u043e \u0434\u043b\u044f GPA \u043d\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0437\u0430\u0449\u0438\u0442\u0430 \u043e\u0442 \u0437\u0430\u043f\u0438\u0441\u0438 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 KVA, \u043f\u043e\u043c\u0435\u0447\u0435\u043d\u043d\u044b\u0435 \u0442\u043e\u043b\u044c\u043a\u043e [&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-52319","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u043e\u043c \u0432 OpenBSD \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0435 VMM \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430\" \/>\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\/sq\/blog\/uyazvimost-v-gipervizore-vmm-razvivaemom-proektom-openbsd\" \/>\n\t<meta name=\"generator\" content=\"All 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