Vulnerability Database

313,552

Total vulnerabilities in the database

CVE-2014-7975

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.

  • Published: Oct 13, 2014
  • Updated: Nov 9, 2025
  • CVE: CVE-2014-7975
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.9
  • AV:L/AC:L/Au:N/C:N/I:N/A:C

No CWE or OWASP classifications available.

Software From Fixed in
linux / linux_kernel - 3.17.x
canonical / ubuntu_linux 14.10 14.10.x
canonical / ubuntu_linux 12.04 12.04.x
canonical / ubuntu_linux 14.04 14.04.x
canonical / ubuntu_linux 10.04 10.04.x