Linux: Disabling network namespaces

Linux: Disabling network namespaces

Open Source Security [[{„value“:“

Posted by Solar Designer on Apr 14


Many Linux kernel vulnerabilities including the recently exploited
Netfilter CVE-2024-1086 require CAP_NET_ADMIN in a namespace, yet a
typically recommended mitigation is to disable user namespaces (not just
network namespaces).

Further, while on Debian/Ubuntu it is possible to disable just
unprivileged user namespaces with the Debian-specific sysctl
kernel.unprivileged_userns_clone=0, on other distros we’d have to use…
„}]] Read More 

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