CVE-2018-10906
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.41% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-285, CWE-269
- Affected
- debian/debian linux · fuse project/fuse · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2018:3324Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10906Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00015.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5XYA6PXT5PPWVK7CM7K4YRCYWA37DODB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A253TZWZK6R7PT2S5JIEAQJR2TYKX7V2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BREAIWIK64DRJWHIGR47L2D5YICY4HQ3/
- https://www.debian.org/security/2018/dsa-4257Third Party Advisory
- https://www.exploit-db.com/exploits/45106/Exploit, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3324Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10906Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00015.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5XYA6PXT5PPWVK7CM7K4YRCYWA37DODB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A253TZWZK6R7PT2S5JIEAQJR2TYKX7V2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BREAIWIK64DRJWHIGR47L2D5YICY4HQ3/
- https://www.debian.org/security/2018/dsa-4257Third Party Advisory
- https://www.exploit-db.com/exploits/45106/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.