fs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled via a "mount -o remount" command within a user namespace.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2014-09-18 21:04 | ALAS-2014-417 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv2 | 6.0 | AV:L/AC:H/Au:S/C:C/I:C/A:C |
NVD | CVSSv2 | 6.2 | AV:L/AC:H/Au:N/C:C/I:C/A:C |