Debian Security Update DSA-4257 fuse - security update

[LinuxBot]

Jann Horn discovered that FUSE, a Filesystem in USErspace, allows the bypass of the user_allow_other restriction when SELinux is active (including in permissive mode). A local user can take advantage of this flaw in the fusermount utility to bypass the system configuration and mount a FUSE filesystem with the allow_other mount option.

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