NetSight
IP …
high7.2

CVE-2014-5206

The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, whic…

Impact

The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 3.8 before 3.10.55
from 3.11 before 3.12.27
from 3.13 before 3.14.19
from 3.15 before 3.16.3
CanonicalUbuntu Linux
Versions 12.04, 14.04

Weakness classification

CWE-269

References