CVE-2018-10906

Description

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.

How to fix CVE-2018-10906

To remediate CVE-2018-10906, upgrade the affected package to a fixed version below.

• —upgrade to 2.9.8-r0 or later
• —upgrade to 3.2.5-r0 or later
• —upgrade to 2.9.8-1 or later
• —upgrade to 2.9.3-15+deb8u3 or later
• —upgrade to 2.9.7-1+deb9u1 or later
• —upgrade to 3.2.6-1 or later

Is CVE-2018-10906 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (6)

• from 0, < 2.9.8-r0
• from 0, < 3.2.5-r0
• from 0, < 2.9.8-1
• from 0, < 2.9.3-15+deb8u3
• from 0, < 2.9.7-1+deb9u1
• from 0, < 3.2.6-1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2018-10906
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2018-10906