{"id":1169983,"date":"2023-08-09T15:12:26","date_gmt":"2023-08-09T19:12:26","guid":{"rendered":"https:\/\/www.prime-wow.com\/?p=1169983"},"modified":"2023-08-09T15:12:26","modified_gmt":"2023-08-09T19:12:26","slug":"downfall-bug-affects-years-of-intel-cpus-can-leak-encryption-keys-and-more","status":"publish","type":"post","link":"https:\/\/www.prime-wow.com\/?p=1169983","title":{"rendered":"\u201cDownfall\u201d bug affects years of Intel CPUs, can leak encryption keys and more"},"content":{"rendered":"<div id=\"rss-wrap\">\n<figure class=\"intro-image intro-left\">\n  <img decoding=\"async\" src=\"https:\/\/www.prime-wow.com\/wp-content\/uploads\/2023\/08\/DSC09738-800x535-1.jpg\" alt=\"An 8th-generation Intel Core desktop CPU, one of several CPU generations affected by the Downfall bug.\" \/><\/p>\n<p class=\"caption\" style=\"font-size:0.8em\"><a href=\"https:\/\/cdn.arstechnica.net\/wp-content\/uploads\/2023\/08\/DSC09738.jpg\" class=\"enlarge-link\" data-height=\"1283\" data-width=\"1920\">Enlarge<\/a> <span class=\"sep\">\/<\/span> An 8th-generation Intel Core desktop CPU, one of several CPU generations affected by the Downfall bug. (credit: Mark Walton)<\/p>\n<\/figure>\n<div><a name=\"page-1\" \/><\/div>\n<p>It&#8217;s a big week for CPU security vulnerabilities. Yesterday, different security researchers published details on two different vulnerabilities, one affecting multiple generations of Intel processors and another affecting the newest AMD CPUs. &#8220;<a href=\"https:\/\/www.intel.com\/content\/www\/us\/en\/security-center\/advisory\/intel-sa-00828.html\">Downfall<\/a>&#8221; and &#8220;<a href=\"https:\/\/www.amd.com\/en\/resources\/product-security\/bulletin\/amd-sb-7005.html\">Inception<\/a>&#8221; (respectively) are different bugs, but both involve modern processors&#8217; extensive use of speculative execution (a la the original <a href=\"https:\/\/arstechnica.com\/gadgets\/2018\/01\/meltdown-and-spectre-every-modern-processor-has-unfixable-security-flaws\/\">Meltdown and Spectre bugs<\/a>), both are described as being of &#8220;medium&#8221; severity, and both can be patched either with OS-level microcode updates or firmware updates with fixes incorporated.<\/p>\n<p>AMD and Intel have both already released OS-level microcode software updates to address both issues. Both companies have also said that they&#8217;re not aware of any active in-the-wild exploits of either vulnerability. Consumer, workstation, and server CPUs are all affected, making patching particularly important for server administrators.<\/p>\n<p>It will be up to your PC, server, or motherboard manufacturer to release firmware updates with the fixes after Intel and AMD make them available.<\/p>\n<\/div>\n<p><a href=\"https:\/\/arstechnica.com\/?p=1959890#p3\">Read 13 remaining paragraphs<\/a> | <a href=\"https:\/\/arstechnica.com\/?p=1959890&amp;comments=1\">Comments<\/a><\/p>\n<p>&#013;<br \/>\n&#013;<br \/>\nSource: Ars Technica &#8211; <a href=\"https:\/\/arstechnica.com\/?p=1959890\" target=\"_blank\" rel=\"noopener\">\u201cDownfall\u201d bug affects years of Intel CPUs, can leak encryption keys and more<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enlarge \/ An 8th-generation Intel Core desktop CPU, one of several CPU generations affected by the Downfall bug. (credit: Mark Walton) It&#8217;s a big week for CPU security vulnerabilities. Yesterday, different security researchers published details on two different vulnerabilities, one &hellip; <a href=\"https:\/\/www.prime-wow.com\/?p=1169983\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1169984,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[27,110],"tags":[73],"class_list":["post-1169983","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ars-technica","category-unfiltered-rss","tag-ars-technica"],"_links":{"self":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1169983","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=1169983"}],"version-history":[{"count":0,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1169983\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/media\/1169984"}],"wp:attachment":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1169983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1169983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1169983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}