{"id":1188333,"date":"2023-10-03T14:50:31","date_gmt":"2023-10-03T18:50:31","guid":{"rendered":"https:\/\/www.prime-wow.com\/?p=1188333"},"modified":"2023-10-03T14:50:31","modified_gmt":"2023-10-03T18:50:31","slug":"a-local-root-vulnerability-in-glibc","status":"publish","type":"post","link":"https:\/\/www.prime-wow.com\/?p=1188333","title":{"rendered":"A local root vulnerability in glibc"},"content":{"rendered":"<p>Qualys has posted <a href=\"https:\/\/lwn.net\/ml\/oss-security\/20231003175031.GA16924@localhost.localdomain\/\">an<br \/>\nadvisory<\/a> for a vulnerability in the GNU C Library related to the<br \/>\nhandling of the <tt>GLIBC_TUNABLES<\/tt> environment variable:\n<\/p>\n<\/p>\n<blockquote class=\"bq\"><p>\n\tWe successfully exploited this vulnerability and obtained full root<br \/>\n\tprivileges on the default installations of Fedora 37 and 38, Ubuntu<br \/>\n\t22.04 and 23.04, Debian 12 and 13; other distributions are probably<br \/>\n\talso vulnerable and exploitable (one notable exception is Alpine<br \/>\n\tLinux, which uses musl libc, not the glibc).\n<\/p><\/blockquote>\n<p>\nUpdates from distributors are beginning to appear and should be applied on<br \/>\nany systems with untrusted users.<br \/>\nThe curious can see the fix applied to glibc in <a href=\"https:\/\/lwn.net\/ml\/libc-alpha\/20231003170811.64957-1-siddhesh@sourceware.org\/\">this<br \/>\npatch series<\/a>.&#013;<br \/>\n&#013;<br \/>\nSource: LWN.net &#8211; <a href=\"https:\/\/lwn.net\/Articles\/946381\/\" target=\"_blank\" rel=\"noopener\">A local root vulnerability in glibc<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qualys has posted an advisory for a vulnerability in the GNU C Library related to the handling of the GLIBC_TUNABLES environment variable: We successfully exploited this vulnerability and obtained full root privileges on the default installations of Fedora 37 and &hellip; <a href=\"https:\/\/www.prime-wow.com\/?p=1188333\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[75],"class_list":["post-1188333","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux"],"_links":{"self":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1188333","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=1188333"}],"version-history":[{"count":0,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1188333\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1188333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1188333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1188333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}