![]() Some of bubblewrap's use-cases want a security boundary between the sandboxĪnd the real system other use-cases want the ability to change the layout of Setuid binaries, which is the traditional way to get out of thingsīubblewrap is a tool for constructing sandbox environments.īubblewrap is not a complete, ready-made sandbox with a specific security In particular, bubblewrap uses PR_SET_NO_NEW_PRIVS to turn off In user to perform denial of service attacks, however. In combination with typical software installed on that distribution,Īllow privilege escalation. The maintainers of this tool believe that it does not, even when used The original bubblewrap code existed before user namespaces - it inherits code from Emphasis on subset - specifically relevant to theĪbove CVE, bubblewrap does not allow control over iptables. ![]() Which is a local root vulnerability introduced by userns.īubblewrap could be viewed as setuid implementation of a subset of Such as CentOS/Red Hat Enterprise Linux 7, Debian Jessie, etc. It is not available to unprivileged users in several production distributions ![]() While significant progress has been made, there are Which attempts to allow unprivileged users to use container features. There is an effort in the Linux kernel called Is trivial to turn such access into a fully privileged root shell These tools are not suitable to give to unprivileged users, because it focus on providing infrastructure for system administrators and Many container runtime tools like systemd-nspawn, docker,Įtc.
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