CVE-2014-7975
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2014-7975
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2014-7975.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2014-7975
- Downstream
- Related
- Published
- 2014-10-13T10:55:09Z
- Modified
- 2025-08-09T19:01:27Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The doumount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAPSYSADMIN capability for doremountsb 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 / MNTLOCKED flag, and making an MNT_FORCE umount system call.
- References
-
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5
- http://secunia.com/advisories/60174
- http://secunia.com/advisories/61145
- http://secunia.com/advisories/62633
- http://secunia.com/advisories/62634
- http://www.openwall.com/lists/oss-security/2014/10/08/22
- http://www.securityfocus.com/bid/70314
- http://www.securitytracker.com/id/1031180
- http://www.ubuntu.com/usn/USN-2415-1
- http://www.ubuntu.com/usn/USN-2416-1
- http://www.ubuntu.com/usn/USN-2417-1
- http://www.ubuntu.com/usn/USN-2418-1
- http://www.ubuntu.com/usn/USN-2419-1
- http://www.ubuntu.com/usn/USN-2420-1
- http://www.ubuntu.com/usn/USN-2421-1
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://bugzilla.redhat.com/show_bug.cgi?id=1151108
- https://exchange.xforce.ibmcloud.com/vulnerabilities/96994
- http://thread.gmane.org/gmane.linux.kernel.stable/109312