Debian Linux Security Advisory 4257-1 - 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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Debian Security Advisory DSA-4257-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
July 28, 2018 https://www.debian.org/security/faq
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Package : fuse
CVE ID : CVE-2018-10906
Debian Bug : 904439
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.
For the stable distribution (stretch), this problem has been fixed in
version 2.9.7-1+deb9u1.
We recommend that you upgrade your fuse packages.
For the detailed security status of fuse please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/fuse
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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