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CVE-2018-10906

Published: 24 July 2018

In fuse before versions 2.9.8 and 3.x before 3.2.5, fusermount is vulnerable to a restriction bypass when SELinux is active. This allows 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.

Priority

Low

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
fuse
Launchpad, Ubuntu, Debian
groovy Not vulnerable
(2.9.9-3)
hirsute Not vulnerable
(2.9.9-4ubuntu2)
jammy Not vulnerable
(2.9.9-5ubuntu1)
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(2.9.9-3)
impish Not vulnerable
(2.9.9-5ubuntu1)
kinetic Not vulnerable
(2.9.9-5ubuntu1)
lunar Not vulnerable
(2.9.9-5ubuntu1)
trusty Needs triage

upstream
Released (2.9.8)
xenial
Released (2.9.4-1ubuntu3.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Not vulnerable
(2.9.9-5ubuntu1)
fuse3
Launchpad, Ubuntu, Debian
groovy Not vulnerable
(3.9.3-1)
hirsute Not vulnerable
(3.10.2-2build1)
jammy Not vulnerable
(3.10.3-1)
bionic Does not exist

cosmic Does not exist

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(3.9.0-2)
impish Not vulnerable
(3.10.3-1)
kinetic Not vulnerable
(3.10.3-1)
lunar Not vulnerable
(3.10.3-1)
trusty Does not exist

upstream
Released (3.2.5)
xenial Does not exist

mantic Not vulnerable
(3.10.3-1)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H