DEBIAN-CVE-2014-7975

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2014-7975
Published: 13 Oct 2014, 10:55
Last modified:28 Apr 2026, 20:13

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Oct 2014, 10:55
Published
Vulnerability first disclosed
28 Apr 2026, 20:13
Last Modified
Vulnerability information updated

Description

The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • debian•linux

    < 3.16.7-1 | < 3.16.7-1 | < 3.16.7-1 | < 3.16.7-1

References (1)