{"id":39427,"date":"2019-10-31T22:32:37","date_gmt":"2019-10-31T19:32:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/10-uyazvimostej-v-gipervizore-xen\/"},"modified":"2019-10-31T22:32:37","modified_gmt":"2019-10-31T19:32:37","slug":"10-uyazvimostej-v-gipervizore-xen","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/10-uyazvimostej-v-gipervizore-xen","title":{"rendered":"10 vulnerabilitete n\u00eb hipervizorin Xen","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/\">Publikuar<\/a><\/noindex> informacione mbi 10 dob\u00ebsit\u00eb n\u00eb hipervizorin Xen, nga t\u00eb cilat pes\u00eb (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/6\">CVE-2019-17341<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/2\">CVE-2019-17342<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/1\">CVE-2019-17340<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/5\">CVE-2019-17346<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/10\">CVE-2019-17343<\/a><\/noindex>) potencialisht lejojn\u00eb daljen p\u00ebrtej mjedisit aktual t\u00eb mysafir\u00ebve dhe rritjen e privilegjeve, nj\u00eb dob\u00ebsi (CVE-2019-17347) lejon nj\u00eb proces t\u00eb pap\u00ebrgjegjsh\u00ebm t\u00eb marr\u00eb kontroll mbi proceset e p\u00ebrdoruesve t\u00eb tjer\u00eb n\u00eb t\u00eb nj\u00ebjt\u00ebn sistem mysafir, kat\u00ebr dob\u00ebsi t\u00eb mbetura (CVE-2019-17344, CVE-2019-17345, CVE-2019-17348, CVE-2019-17351) lejojn\u00eb shkaktimin e nj\u00eb d\u00ebshtimi t\u00eb sh\u00ebrbimit (shembje e mjedisit t\u00eb hostit). Problemet jan\u00eb zgjidhur n\u00eb l\u00ebshimet <noindex><a rel=\"nofollow\" href=\"https:\/\/xenproject.org\/downloads\/\">Xen 4.12.1, 4.11.2 dhe 4.10.4<\/a><\/noindex>.<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/6\">CVE-2019-17341<\/a><\/noindex> \u2014 mund\u00ebsia q\u00eb sistemi i kontrolluar nga sulmuesi t\u00eb fitoj\u00eb qasje n\u00eb nivelin e hipervizorit. Problemi shfaqet vet\u00ebm n\u00eb sistemet x86 dhe mund t\u00eb realizohet nga sistemet mysliman n\u00eb modalitetin e para-virtualizimit (PV), kur nj\u00eb pajisje PCI e re kalon n\u00eb nj\u00eb sistem mysliman q\u00eb \u00ebsht\u00eb n\u00eb pun\u00eb. N\u00eb sistemet mysliman q\u00eb punojn\u00eb n\u00eb modalitetet HVM dhe PVH, kjo dob\u00ebsi nuk shfaqet;\n<li class=\"l\">  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/1\">CVE-2019-17340<\/a><\/noindex> \u2014 rrjedhja e memories, potencialisht e aft\u00eb t\u00eb rrit\u00eb privilegjet e tij ose t\u00eb fitoj\u00eb qasje n\u00eb t\u00eb dh\u00ebnat e sistemeve t\u00eb tjera mysliman;<br \/>\nProblemi shfaqet vet\u00ebm n\u00eb hostet me m\u00eb shum\u00eb se 16 TB RAM n\u00eb sistemet 64 bit dhe 168 GB n\u00eb ato 32 bit.<br \/>\nDob\u00ebsia mund t\u00eb shfryt\u00ebzohet vet\u00ebm nga sistemet mysafire n\u00eb modin PV (n\u00eb modalitetet HVM dhe PVH, dob\u00ebsia nuk shfaqet);<\/p>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/5\">CVE-2019-17346<\/a><\/noindex> \u2014 dob\u00ebsia n\u00eb p\u00ebrdorimin e PCID (Identifikuesit e Kontekstit t\u00eb Procesit) p\u00ebr t\u00eb p\u00ebrmir\u00ebsuar performanc\u00ebn e mbrojtjes nga sulmet<br \/>\nMeltdown, lejon aksesin n\u00eb t\u00eb dh\u00ebnat e sistemeve t\u00eb tjera mysafire dhe potencialisht rritjen e privilegjeve. Dob\u00ebsia mund t\u00eb shfryt\u00ebzohet vet\u00ebm nga sistemet mysafire n\u00eb modin PV n\u00eb sistemet x86 (problemi nuk shfaqet n\u00eb modalitetet HVM dhe PVH, si dhe n\u00eb konfigurimet ku nuk ka sisteme mysafire me PCID t\u00eb aktivizuar (PCID aktivizohet si parazgjedhje));<\/p>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/2\">CVE-2019-17342<\/a><\/noindex> \u2014 problemi n\u00eb implementimin e hipervizorit XENMEM_exchange lejon rritjen e privilegjeve n\u00eb ambientet me vet\u00ebm nj\u00eb sistem mysliman. Kjo dob\u00ebsi mund t\u00eb shfryt\u00ebzohet vet\u00ebm nga sistemet mysliman n\u00eb modalitetin PV (n\u00eb modalitetet HVM dhe PVH, dob\u00ebsia nuk shfaqet);\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/10\/25\/10\">CVE-2019-17343<\/a><\/noindex> \u2014 mapimi i gabuar n\u00eb IOMMU lejon, n\u00ebse ka qasje nga sistemi mysliman n\u00eb pajisjen fizike, p\u00ebrdorimin e DMA p\u00ebr t\u00eb ndryshuar tabel\u00ebn e saj t\u00eb faqeve t\u00eb memories dhe p\u00ebr t\u00eb fituar qasje n\u00eb nivelin e hostit. Kjo dob\u00ebsi shfaqet vet\u00ebm n\u00eb sistemet mysliman n\u00eb modalitetin PV n\u00ebse ka t\u00eb drejta p\u00ebr t\u00eb kaluar pajisjet PCI.\n<\/ul>\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=51764\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e 10 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0435 Xen, \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u044f\u0442\u044c (CVE-2019-17341, CVE-2019-17342, CVE-2019-17340, CVE-2019-17346, CVE-2019-17343) \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0432\u044b\u0439\u0442\u0438 \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b \u0442\u0435\u043a\u0443\u0449\u0435\u0433\u043e \u0433\u043e\u0441\u0442\u0435\u0432\u043e\u0433\u043e \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0438 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438, \u043e\u0434\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2019-17347) \u0434\u0430\u0451\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043d\u0435\u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0443 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c \u043d\u0430\u0434 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430\u043c\u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0432 \u0442\u043e\u0439 \u0436\u0435 \u0433\u043e\u0441\u0442\u0435\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435, \u043e\u0441\u0442\u0430\u0432\u0448\u0438\u0435\u0441\u044f \u0447\u0435\u0442\u044b\u0440\u0435 (CVE-2019-17344, CVE-2019-17345, CVE-2019-17348, CVE-2019-17351) \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0432\u044b\u0437\u0432\u0430\u0442\u044c [&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-39427","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All 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