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Debian Security Advisory 4257-1

Debian Security Advisory 4257-1
Posted Jul 30, 2018
Authored by Debian | Site debian.org

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.

tags | advisory, local
systems | linux, debian
advisories | CVE-2018-10906
SHA-256 | 6ae379afa1bdb3daca80e53b902623ac0af07b819114316f385107c5a5c45863

Debian Security Advisory 4257-1

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
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
- -------------------------------------------------------------------------

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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