{"id":102960,"date":"2022-01-13T21:36:44","date_gmt":"2022-01-13T19:36:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/%d0%b5%d1%89%d1%91-%d0%be%d0%b4%d0%bd%d0%b0-%d1%83%d1%8f%d0%b7%d0%b2%d0%b8%d0%bc%d0%be%d1%81%d1%82%d1%8c-%d0%b2-%d0%bf%d0%be%d0%b4%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d0%b5-ebpf-%d0%bf%d0%be%d0%b7"},"modified":"2022-01-13T21:36:44","modified_gmt":"2022-01-13T19:36:44","slug":"%d0%b5%d1%89%d1%91-%d0%be%d0%b4%d0%bd%d0%b0-%d1%83%d1%8f%d0%b7%d0%b2%d0%b8%d0%bc%d0%be%d1%81%d1%82%d1%8c-%d0%b2-%d0%bf%d0%be%d0%b4%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d0%b5-ebpf-%d0%bf%d0%be%d0%b7","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/%d0%b5%d1%89%d1%91-%d0%be%d0%b4%d0%bd%d0%b0-%d1%83%d1%8f%d0%b7%d0%b2%d0%b8%d0%bc%d0%be%d1%81%d1%82%d1%8c-%d0%b2-%d0%bf%d0%be%d0%b4%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d0%b5-ebpf-%d0%bf%d0%be%d0%b7","title":{"rendered":"Another vulnerability in the eBPF subsystem that allows privilege escalation","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Another vulnerability has been discovered in the eBPF subsystem (no CVE available), similar to yesterday's issue that allows a local unprivileged user to execute code at the Linux kernel level. The problem has been observed since Linux kernel 5.8 and remains unpatched. A working exploit is expected to be published on January 18.      <\/p>\n<p>A new vulnerability is caused by incorrect verification of the parameters passed for the execution of eBPF programs. In particular, the eBPF verifier did not properly restrict certain types of pointers *_OR_NULL, which allowed for pointer manipulations from eBPF programs and enabled privilege escalation. To block the exploitation of the vulnerability, it is recommended to prevent the execution of BPF programs by unprivileged users with the command &#171;sysctl -w kernel.unprivileged_bpf_disabled=1&#187;.<br \/>\n<br \/>Source: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56504\">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 eBPF \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0435\u0449\u0451 \u043e\u0434\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442), \u043a\u0430\u043a \u0438 \u0432\u0447\u0435\u0440\u0430\u0448\u043d\u044f\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u043c\u0443 \u043d\u0435\u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u044f\u0434\u0440\u0430 Linux. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u044f\u0434\u0440\u0430 Linux 5.8 \u0438 \u043f\u043e\u043a\u0430 \u043e\u0441\u0442\u0430\u0451\u0442\u0441\u044f \u043d\u0435\u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043d\u043e\u0439. \u0420\u0430\u0431\u043e\u0447\u0438\u0439 \u044d\u043a\u0441\u043f\u043b\u043e\u0438\u0442 \u043e\u0431\u0435\u0449\u0430\u044e\u0442 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u0442\u044c 18 \u044f\u043d\u0432\u0430\u0440\u044f. \u041d\u043e\u0432\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0445 \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f eBPF-\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c. \u0412 \u0447\u0430\u0441\u0442\u043d\u043e\u0441\u0442\u0438 \u0432\u0435\u0440\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440 eBPF \u0434\u043e\u043b\u0436\u043d\u044b\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c [&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-102960","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 eBPF \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0435\u0449\u0451 \u043e\u0434\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442), \u043a\u0430\u043a \u0438 \u0432\u0447\u0435\u0440\u0430\u0448\u043d\u044f\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 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All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Another vulnerability in the eBPF subsystem allows for privilege escalation | ProHoster","description":"Another vulnerability has been discovered in the eBPF subsystem (no CVE available), similar to yesterday's issue that allows a local unprivileged user to execute code at the Linux kernel level.","canonical_url":"https:\/\/prohoster.info\/en\/blog\/news\/%d0%b5%d1%89%d1%91-%d0%be%d0%b4%d0%bd%d0%b0-%d1%83%d1%8f%d0%b7%d0%b2%d0%b8%d0%bc%d0%be%d1%81%d1%82%d1%8c-%d0%b2-%d0%bf%d0%be%d0%b4%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d0%b5-ebpf-%d0%bf%d0%be%d0%b7","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"en_US","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 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