https:\/\/access.redhat.com\/solutions\/41278<\/a> for instructions on how to blacklist kernel modules.<\/p>\n\n\n\n2. If this module cannot be disabled, users can restrict user _ namespace (user namespace) in Linux non-containerized deployment.<\/p>\n\n\n\n
RedHat\/CentOS：
# echo “user.max_user_namespaces=0” > \/etc\/sysctl.d\/userns.conf
# sysctl -p \/etc\/sysctl.d\/userns.conf
Debian\/Ubuntu：
Temporarily disabled:
# sudo sysctl -w kernel.unprivileged_userns_clone=0
Permanently disabled:
# echo kernel.unprivileged_userns_clone=0 | sudo tee \/etc\/sysctl.d\/99-disable-unpriv-userns.conf<\/p>\n\n\n\n
Statement<\/h2>\n\n\n\n
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and\/or indirect consequences and losses caused by transmitting and\/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add\/delete any information to\/from it, or use this advisory for commercial purposes without permission from NSFOCUS.<\/p>\n\n\n\n
About NSFOCUS<\/h2>\n\n\n\n
NSFOCUS, a pioneering leader in cybersecurity, is dedicated to safeguarding telecommunications, Internet service providers, hosting providers, and enterprises from sophisticated cyberattacks.<\/p>\n\n\n\n
Founded in 2000, NSFOCUS operates globally with over 4000 employees at two headquarters in Beijing, China, and Santa Clara, CA, USA, and over 50 offices worldwide. It has a proven track record of protecting over 25% of the Fortune Global 500 companies, including four of the five largest banks and six of the world’s top ten telecommunications companies.<\/p>\n\n\n\n
Leveraging technical prowess and innovation, NSFOCUS delivers a comprehensive suite of security solutions, including the Intelligent Security Operations Platform (ISOP) for modern SOC, DDoS Protection, Continuous Threat Exposure Management (CTEM) Service and Web Application and API Protection (WAAP). All the solutions and services are augmented by the Security Large Language Model (SecLLM), ML, patented algorithms and other cutting-edge research achievements developed by NSFOCUS.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"
Overview Recently, NSFOCUS CERT detected that the details and verification tools of a Linux kernel privilege escalation vulnerability (CVE-2024-1086) are disclosed on the internet. Because the netfilter: nf _ tables component of the Linux kernel has a post-release reuse vulnerability, the nft _ verdict _ init () function allows positive values to be used as […]<\/p>\n","protected":false},"author":1,"featured_media":8904,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[3,6],"tags":[301,492],"class_list":["post-29566","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-emergency-response","tag-cve-2024-1086","tag-linux-kernel"],"acf":[],"yoast_head":"\n
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<\/a><\/figure>\n\n\n\n