{"id":4486,"date":"2018-01-04T12:39:00","date_gmt":"2018-01-04T11:39:00","guid":{"rendered":"http:\/\/tehnokrat.si\/?p=4486"},"modified":"2018-01-26T12:39:42","modified_gmt":"2018-01-26T11:39:42","slug":"zaradi-grozno-ranljivih-procesorjev-si-bomo-se-grizli-nohte","status":"publish","type":"post","link":"https:\/\/tehnokrat.si\/?p=4486","title":{"rendered":"Zaradi grozno ranljivih procesorjev si bomo \u0161e grizli nohte"},"content":{"rendered":"<p>Zdi se prav neverjetno, kako je uspelo razvijalcem procesorjev ve\u010d desetletij &#8220;\u0161lepati&#8221; grozni ranljivosti Spectre in Meltdown, o katerih lahko beremo te dni. Najve\u010d potu te\u010de po \u010delih Intelovih in\u017eenirjev, ki mrzli\u010dno i\u0161\u010dejo re\u0161itve za nastalo situacijo, saj so ranljivi skoraj vsi njegovi procesorji. Dodatna te\u017eava je v tem, da tudi \u010de se ranljivosti pokrpajo na nivoju operacijskih sistemov in osnovnih plo\u0161\u010d, to pusti posledice na zmogljivostih &#8211; nekateri procesorji delujejo od 20 do 50 % po\u010dasneje, kar pa ni nekaj, kar bi bila podjetja proizvajalcu procesorjev pripravljena odpustiti.<\/p>\n<p><a href=\"http:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4487\" src=\"http:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre-300x169.jpg\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre-300x169.jpg 300w, https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre-768x432.jpg 768w, https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre-1024x576.jpg 1024w, https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre.jpg 1280w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Bolj\u0161a situacija je v AMD taboru. Tam so prvo razli\u010dico Spectre zakrpali na nivoju OS in prakti\u010dno z zanemarljivim u\u010dinkom na zmogljivosti, druga razli\u010dica Spectre (BTI) pa sploh ne deluje na AMDjevih sredicah, podobno kot ranljivost Meltdown.<\/p>\n<p>Po namestiti varnostnega popravka za sistem Windows (v mojem primeru 10) se mi je kar oddahnilo, da mi produkcijski PC poganja Ryzen 5 1600. Vsem priporo\u010dam, da si popravke namestite \u010dim prej, saj v nasprotnem primeru tvegate krajo podatkov.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Zdi se prav neverjetno, kako je uspelo razvijalcem procesorjev ve\u010d desetletij &#8220;\u0161lepati&#8221; grozni ranljivosti Spectre&#8230;<\/p>\n","protected":false},"author":1,"featured_media":4487,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[122,86,2715,869,1857,2714],"class_list":["post-4486","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-it","tag-amd","tag-intel","tag-meltdown","tag-procesorji","tag-ranljivosti","tag-spectre"],"featured_image_urls":{"full":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre.jpg",1280,720,false],"thumbnail":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre-150x150.jpg",150,150,true],"medium":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre-300x169.jpg",300,169,true],"medium_large":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre-768x432.jpg",640,360,true],"large":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre-1024x576.jpg",640,360,true],"1536x1536":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre.jpg",1280,720,false],"2048x2048":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre.jpg",1280,720,false],"newsphere-slider-full":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre.jpg",1280,720,false],"newsphere-featured":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre.jpg",1024,576,false],"newsphere-medium":["https:\/\/tehnokrat.si\/wp-content\/uploads\/2018\/01\/meltdown-spectre.jpg",676,380,false]},"author_info":{"display_name":"Miran","author_link":"https:\/\/tehnokrat.si\/?author=1"},"category_info":"<a href=\"https:\/\/tehnokrat.si\/?cat=1\" rel=\"category\">Informacijske tehnologije<\/a>","tag_info":"Informacijske tehnologije","comment_count":"0","_links":{"self":[{"href":"https:\/\/tehnokrat.si\/index.php?rest_route=\/wp\/v2\/posts\/4486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tehnokrat.si\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tehnokrat.si\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tehnokrat.si\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tehnokrat.si\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4486"}],"version-history":[{"count":1,"href":"https:\/\/tehnokrat.si\/index.php?rest_route=\/wp\/v2\/posts\/4486\/revisions"}],"predecessor-version":[{"id":4488,"href":"https:\/\/tehnokrat.si\/index.php?rest_route=\/wp\/v2\/posts\/4486\/revisions\/4488"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tehnokrat.si\/index.php?rest_route=\/wp\/v2\/media\/4487"}],"wp:attachment":[{"href":"https:\/\/tehnokrat.si\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tehnokrat.si\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tehnokrat.si\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}