CVE ID:	CVE-2014-7975
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.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2014-7975 BugTraq ID: 70314 http://www.securityfocus.com/bid/70314 http://www.openwall.com/lists/oss-security/2014/10/08/22 http://thread.gmane.org/gmane.linux.kernel.stable/109312 RedHat Security Advisories: RHSA-2017:1842 https://access.redhat.com/errata/RHSA-2017:1842 RedHat Security Advisories: RHSA-2017:2077 https://access.redhat.com/errata/RHSA-2017:2077 http://www.securitytracker.com/id/1031180 http://secunia.com/advisories/60174 http://secunia.com/advisories/61145 http://secunia.com/advisories/62633 http://secunia.com/advisories/62634 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 XForce ISS Database: linux-kernel-cve20147975-dos(96994) https://exchange.xforce.ibmcloud.com/vulnerabilities/96994