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CVE-2014-7975 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5	CVE	Mailing ListPatchVendor Advisory
https://access.redhat.com/errata/RHSA-2017:1842	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077	CVE	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1151108	CVE	Issue TrackingPatchThird Party Advisory
http://secunia.com/advisories/60174	CVE	Broken Link
http://secunia.com/advisories/61145	CVE	Broken Link
http://secunia.com/advisories/62633	CVE	Broken Link
http://secunia.com/advisories/62634	CVE	Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/96994	CVE	Third Party AdvisoryVDB Entry
http://thread.gmane.org/gmane.linux.kernel.stable/109312	CVE	Broken Link
http://www.openwall.com/lists/oss-security/2014/10/08/22	CVE	Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/70314	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1031180	CVE	Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2415-1	CVE	Third Party Advisory
http://www.ubuntu.com/usn/USN-2416-1	CVE	Third Party Advisory
http://www.ubuntu.com/usn/USN-2417-1	CVE	Third Party Advisory
http://www.ubuntu.com/usn/USN-2418-1	CVE	Third Party Advisory
http://www.ubuntu.com/usn/USN-2419-1	CVE	Third Party Advisory
http://www.ubuntu.com/usn/USN-2420-1	CVE	Third Party Advisory
http://www.ubuntu.com/usn/USN-2421-1	CVE	Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5	[email protected]	Mailing ListPatchVendor Advisory
https://access.redhat.com/errata/RHSA-2017:1842	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077	[email protected]	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1151108	[email protected]	Issue TrackingPatchThird Party Advisory
http://secunia.com/advisories/60174	[email protected]	Broken Link
http://secunia.com/advisories/61145	[email protected]	Broken Link
http://secunia.com/advisories/62633	[email protected]	Broken Link
http://secunia.com/advisories/62634	[email protected]	Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/96994	[email protected]	Third Party AdvisoryVDB Entry
http://thread.gmane.org/gmane.linux.kernel.stable/109312	[email protected]	Broken Link
http://www.openwall.com/lists/oss-security/2014/10/08/22	[email protected]	Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/70314	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1031180	[email protected]	Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2415-1	[email protected]	Third Party Advisory
http://www.ubuntu.com/usn/USN-2416-1	[email protected]	Third Party Advisory
http://www.ubuntu.com/usn/USN-2417-1	[email protected]	Third Party Advisory
http://www.ubuntu.com/usn/USN-2418-1	[email protected]	Third Party Advisory
http://www.ubuntu.com/usn/USN-2419-1	[email protected]	Third Party Advisory
http://www.ubuntu.com/usn/USN-2420-1	[email protected]	Third Party Advisory
http://www.ubuntu.com/usn/USN-2421-1	[email protected]	Third Party Advisory

see all 40 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]

Affected Products

Product	Versions
linux linux kernel	<= 3.17
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.
canonical ubuntu linux	10.04 12.04 14.04 14.10
CPE cpe:2.3:o:canonical:ubuntu_linux:10.04::::-::: cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm::: cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm::: cpe:2.3:o:canonical:ubuntu_linux:14.10:::::::* Remediation No remediation found in references.

Change History

12 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 6, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Aug 14, 2020	Modified Analysis	[email protected]
Jan 5, 2018	CVE Modified	[email protected]
Sep 8, 2017	CVE Modified	[email protected]
Jan 7, 2017	CVE Modified	[email protected]
Dec 24, 2014	CVE Modified	[email protected]
Dec 7, 2014	CVE Modified	[email protected]
Dec 3, 2014	CVE Modified	[email protected]
Oct 15, 2014	Initial Analysis	[email protected]