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openSUSE: 2018:3326-1 Moderate: Fuse SELinux Restriction Bypass

opensuse
Calendar Grey October 23, 2018
Dist Opensuse Esm H88
Critical patch for openSUSE addresses SELinux privilege escalation in fuse, enhancing overall system integrity and protection.
An update that fixes one vulnerability is now available.

Description

This update for fuse fixes the following security issue:

- CVE-2018-10906: fusermount was vulnerable to a restriction bypass when

SELinux is active. This allowed non-root users to mount a FUSE file

system with the 'allow_other' mount option regardless of whether

'user_allow_other' is set in the fuse configuration. An attacker may use

this flaw to mount a FUSE file system, accessible by other users, and

trick them into accessing files on that file system, possibly causing

Denial of Service or other unspecified effects (bsc#1101797)

This update was imported from the SUSE:SLE-12:Update update project.

Patch

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 42.3:

zypper in -t patch openSUSE-2018-1225=1

Package List

- openSUSE Leap 42.3 (i586 x86_64):

fuse-2.9.3-12.3.2

fuse-debuginfo-2.9.3-12.3.2

fuse-debugsource-2.9.3-12.3.2

fuse-devel-2.9.3-12.3.2

fuse-devel-static-2.9.3-12.3.2

libfuse2-2.9.3-12.3.2

libfuse2-debuginfo-2.9.3-12.3.2

libulockmgr1-2.9.3-12.3.2

libulockmgr1-debuginfo-2.9.3-12.3.2

- openSUSE Leap 42.3 (x86_64):

libfuse2-32bit-2.9.3-12.3.2

libfuse2-debuginfo-32bit-2.9.3-12.3.2

References

https://www.suse.com/security/cve/CVE-2018-10906.html

https://bugzilla.suse.com/1101797

--

Announcement ID: openSUSE-SU-2018:3326-1
Rating: moderate
Affected Products: openSUSE Leap 42.3

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