{"id":49561,"date":"2022-09-29T05:41:51","date_gmt":"2022-09-28T22:41:51","guid":{"rendered":"https:\/\/deepquest.code511.com\/blog\/2022\/09\/netfilter-nft_set_elem_init-heap-overflow-privilege-escalation\/"},"modified":"2022-09-29T05:41:51","modified_gmt":"2022-09-28T22:41:51","slug":"netfilter-nft_set_elem_init-heap-overflow-privilege-escalation","status":"publish","type":"post","link":"https:\/\/deepquest.code511.com\/blog\/2022\/09\/netfilter-nft_set_elem_init-heap-overflow-privilege-escalation\/","title":{"rendered":"Netfilter nft_set_elem_init Heap Overflow Privilege Escalation"},"content":{"rendered":"<p>An issue was discovered in the Linux kernel through version 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges. The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access. The issue exists in nft_setelem_parse_data in net\/netfilter\/nf_tables_api.c.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An issue was discovered in the Linux kernel through version 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to&#8230;<\/p>\n","protected":false},"author":439,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-49561","post","type-post","status-publish","format-standard","hentry","category-exploit"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4bBYZ-cTn","_links":{"self":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts\/49561","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/users\/439"}],"replies":[{"embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/comments?post=49561"}],"version-history":[{"count":0,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts\/49561\/revisions"}],"wp:attachment":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/media?parent=49561"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/categories?post=49561"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/tags?post=49561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}