CVE-2014-7975

Description (CNA)

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.

Affected (CNA)

CWE

No CWE identifiers supplied.

References

• http://www.ubuntu.com/usn/USN-2418-1
• http://secunia.com/advisories/61145
• https://exchange.xforce.ibmcloud.com/vulnerabilities/96994
• http://www.ubuntu.com/usn/USN-2416-1
• http://www.ubuntu.com/usn/USN-2417-1
• http://www.ubuntu.com/usn/USN-2415-1
• http://www.ubuntu.com/usn/USN-2419-1
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5
• http://www.securitytracker.com/id/1031180
• http://secunia.com/advisories/60174
• http://www.ubuntu.com/usn/USN-2421-1
• http://www.ubuntu.com/usn/USN-2420-1
• https://access.redhat.com/errata/RHSA-2017:2077
• https://access.redhat.com/errata/RHSA-2017:1842
• http://secunia.com/advisories/62633
• http://www.openwall.com/lists/oss-security/2014/10/08/22
• http://secunia.com/advisories/62634
• http://thread.gmane.org/gmane.linux.kernel.stable/109312
• http://www.securityfocus.com/bid/70314
• https://bugzilla.redhat.com/show_bug.cgi?id=1151108

ADP enrichment