DEBIAN-CVE-2014-9717

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2014-9717
Published: 02 May 2016, 10:59
Last modified:28 Apr 2026, 20:13

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6.1 MEDIUM
3.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 May 2016, 10:59
Published
Vulnerability first disclosed
28 Apr 2026, 20:13
Last Modified
Vulnerability information updated

Description

fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.

CVSS Metrics

  • v3.0•MEDIUM•Score: 6.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Affected Systems

  • debian•linux

    < 4.0.2-1 | < 4.0.2-1 | < 4.0.2-1 | < 4.0.2-1

References (1)