{"id":1215198,"date":"2025-02-09T16:34:00","date_gmt":"2025-02-09T21:34:00","guid":{"rendered":"https:\/\/www.prime-wow.com\/?p=1215198"},"modified":"2025-02-09T16:34:00","modified_gmt":"2025-02-09T21:34:00","slug":"how-to-make-any-amd-zen-cpu-always-generate-4-as-a-random-number","status":"publish","type":"post","link":"https:\/\/www.prime-wow.com\/?p=1215198","title":{"rendered":"How To Make Any AMD Zen CPU Always Generate 4 As a Random Number"},"content":{"rendered":"<div>Slashdot reader headlessbrick writes: Google security researchers have discovered a way to bypass AMD&#8217;s security, enabling them to load unofficial microcode into its processors and modify the silicon&#8217;s behaviour at will. To demonstrate this, they created a microcode patch that forces the chips to always return 4 when asked for a random number. Beyond simply allowing Google and others to customize AMD chips for both beneficial and potentially malicious purposes, this capability also undermines AMD&#8217;s secure encrypted virtualization and root-of-trust security mechanisms. <\/p>\n<p>Obligatory XKCD.<\/p>\n<div class=\"share_submission\" style=\"position:relative;\">\n<a class=\"slashpop\" href=\"http:\/\/twitter.com\/home?status=How+To+Make+Any+AMD+Zen+CPU+Always+Generate+4+As+a+Random+Number%3A+https%3A%2F%2Fit.slashdot.org%2Fstory%2F25%2F02%2F09%2F2021244%2F%3Futm_source%3Dtwitter%26utm_medium%3Dtwitter\"><img decoding=\"async\" src=\"https:\/\/www.prime-wow.com\/wp-content\/uploads\/2025\/02\/twitter_icon_large-7.png\"><\/a><br \/>\n<a class=\"slashpop\" href=\"http:\/\/www.facebook.com\/sharer.php?u=https%3A%2F%2Fit.slashdot.org%2Fstory%2F25%2F02%2F09%2F2021244%2Fhow-to-make-any-amd-zen-cpu-always-generate-4-as-a-random-number%3Futm_source%3Dslashdot%26utm_medium%3Dfacebook\"><img decoding=\"async\" src=\"https:\/\/www.prime-wow.com\/wp-content\/uploads\/2025\/02\/facebook_icon_large-7.png\"><\/a><\/p>\n<\/div>\n<p><a href=\"https:\/\/it.slashdot.org\/story\/25\/02\/09\/2021244\/how-to-make-any-amd-zen-cpu-always-generate-4-as-a-random-number?utm_source=rss1.0moreanon&amp;utm_medium=feed\">Read more of this story<\/a> at Slashdot.<\/p>\n<p><iframe src=\"https:\/\/slashdot.org\/slashdot-it.pl?op=discuss&amp;id=23605045&amp;smallembed=1\" style=\"height: 300px; width: 100%; border: none;\"><\/iframe><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Slashdot reader headlessbrick writes: Google security researchers have discovered a way to bypass AMD&#8217;s security, enabling them to load unofficial microcode into its processors and modify the silicon&#8217;s behaviour at will. To demonstrate this, they created a microcode patch that &hellip; <a href=\"https:\/\/www.prime-wow.com\/?p=1215198\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101,44],"tags":[],"class_list":["post-1215198","post","type-post","status-publish","format-standard","hentry","category-slashdot","category-technology"],"_links":{"self":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1215198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1215198"}],"version-history":[{"count":0,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1215198\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1215198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1215198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1215198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}