{"id":104289,"date":"2022-06-06T09:36:38","date_gmt":"2022-06-06T07:36:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/eshhyo-odna-uyazvimost-v-podsisteme-yadra-linux-netfilter"},"modified":"2022-06-06T09:36:38","modified_gmt":"2022-06-06T07:36:38","slug":"eshhyo-odna-uyazvimost-v-podsisteme-yadra-linux-netfilter","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/eshhyo-odna-uyazvimost-v-podsisteme-yadra-linux-netfilter","title":{"rendered":"Veel \u00fcks \u00fcsna olemasolev haavatavus Linuxi Netfilteri kernelis.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Netfilteri tuumaalav s\u00fcsteemis avastati haavatavus (CVE-2022-1972), mis sarnaneb mais avalikustatud probleemiga. Uus haavatavus v\u00f5imaldab ka kohalikel kasutajatel saada s\u00fcsteemis root-\u00f5iguseid, manipuleerides nftables'i reeglitega, ja r\u00fcnnaku teostamiseks on vajalik juurdep\u00e4\u00e4s nftables'ile, mida on v\u00f5imalik saada eraldi nimiruumis (network namespace v\u00f5i user namespace) CLONE_NEWUSER, CLONE_NEWNS v\u00f5i CLONE_NEWNET \u00f5igustega (n\u00e4iteks isoleeritud konteineri k\u00e4itamise v\u00f5imaluse korral).     <\/p>\n<p>Probleem on tingitud veast set-nimekirjade t\u00f6\u00f6tlemise koodis, kus on v\u00e4ljad, mis sisaldavad mitmeid vahemikke, ja see toob kaasa m\u00e4lu piire \u00fcletava kirjutamise spetsiaalselt vormindatud nimekirja parameetreid t\u00f6\u00f6tlemisel. Uurijatel \u00f5nnestus ette valmistada toimiv eksploit Ubuntu 21.10 jaoks, kerneliga 5.13.0-39-generic juur\u00f5iguste saamiseks. Haavatavus ilmneb alates kernelist 5.6. Parandus on ette pandud patchina. Haavatavuse \u00e4rakasutamise v\u00e4ltimiseks tavakasutajates peaks veenduma, et on keelatud nimede loomise v\u00f5imalus mitteprivileegitud kasutajatele (\"sudo sysctl -w kernel.unprivileged_userns_clone=0\").    <\/p>\n<p>Lisaks on avaldatud teavet kolme NFC alams\u00fcsteemiga seotud tuuma haavatavuse kohta. Need haavatavused v\u00f5imaldavad p\u00f5hjustada kokkujooksu tegevustega, mida teostab mittes\u00fcgis\u00f5igustega kasutaja (ohtlikumad r\u00fcnnakusuunad pole veel demonstreeritud):  <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-1734 \u2014 juurdep\u00e4\u00e4s juba vabastatud m\u00e4lule (use-after-free) nfcmrvl draiveris (drivers\/nfc\/nfcmrvl), mis ilmneb, kui simuleerida NFC seadet kasutaja ruumis.\n<li class=\"l\"> CVE-2022-1974 \u2014 juurdep\u00e4\u00e4s juba vabastatud m\u00e4lule netlink-funktsioonides NFC seadmete jaoks (\/net\/nfc\/core.c), mis ilmneb uue seadme registreerimise ajal. Nagu eelmine haavatavus, v\u00f5ib probleem olla \u00e4ra kasutatud NFC seadme simuleerimise kaudu kasutaja ruumis.\n<li class=\"l\"> CVE-2022-1975 \u2014 viga NFC seadmete p\u00fcsivara laadimise koodis, mida saab kasutada 'panic' oleku kutsumiseks.    <\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57305\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u044f\u0434\u0440\u0430 Netfilter \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-1972), \u043f\u043e\u0445\u043e\u0436\u0430\u044f \u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0443 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0443\u044e \u0432 \u043a\u043e\u043d\u0446\u0435 \u043c\u0430\u044f. \u041d\u043e\u0432\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u043c\u0443 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043f\u0440\u0430\u0432\u0430 root \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0447\u0435\u0440\u0435\u0437 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u0441 \u043f\u0440\u0430\u0432\u0438\u043b\u0430\u043c\u0438 \u0432 nftables \u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u0434\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u0430\u0442\u0430\u043a\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a nftables, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0432 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u043c \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0435 \u0438\u043c\u0451\u043d (network namespace \u0438\u043b\u0438 user namespace) \u043f\u0440\u0438 \u043d\u0430\u043b\u0438\u0447\u0438\u0438 \u043f\u0440\u0430\u0432 CLONE_NEWUSER, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-104289","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u044f\u0434\u0440\u0430 Netfilter \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-1972), \u043f\u043e\u0445\u043e\u0436\u0430\u044f \u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0443 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0443\u044e \u0432 \u043a\u043e\u043d\u0446\u0435 \u043c\u0430\u044f.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/et\/blog\/news\/eshhyo-odna-uyazvimost-v-podsisteme-yadra-linux-netfilter\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"et_EE\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0415\u0449\u0451 \u043e\u0434\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u044f\u0434\u0440\u0430 Linux Netfilter | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0412 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u044f\u0434\u0440\u0430 Netfilter \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-1972), \u043f\u043e\u0445\u043e\u0436\u0430\u044f \u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0443 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0443\u044e \u0432 \u043a\u043e\u043d\u0446\u0435 \u043c\u0430\u044f.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/et\/blog\/news\/eshhyo-odna-uyazvimost-v-podsisteme-yadra-linux-netfilter\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-06-06T07:36:38+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-06-06T07:36:38+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Veel \u00fcks haavatavus Linuxi Netfilteri tuumas\u00fcsteemis | ProHoster","description":"Netfilteri tuumaalav s\u00fcsteemis avastati haavatavus (CVE-2022-1972), mis sarnaneb mais avalikustatud probleemiga.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/news\/eshhyo-odna-uyazvimost-v-podsisteme-yadra-linux-netfilter","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0415\u0449\u0451 \u043e\u0434\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u044f\u0434\u0440\u0430 Linux Netfilter | ProHoster","og:description":"\u0412 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u044f\u0434\u0440\u0430 Netfilter \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-1972), \u043f\u043e\u0445\u043e\u0436\u0430\u044f \u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0443 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0443\u044e \u0432 \u043a\u043e\u043d\u0446\u0435 \u043c\u0430\u044f.","og:url":"https:\/\/prohoster.info\/et\/blog\/news\/eshhyo-odna-uyazvimost-v-podsisteme-yadra-linux-netfilter","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2022-06-06T07:36:38+00:00","article:modified_time":"2022-06-06T07:36:38+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"104289","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-25 11:33:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2022-06-06 07:37:01","updated":"2026-01-25 11:33:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/104289","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/comments?post=104289"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/104289\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/media?parent=104289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/categories?post=104289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/tags?post=104289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}