7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.3%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 3.16.2-1 | linux_3.16.2-1_all.deb |
Debian | 11 | all | linux | < 3.16.2-1 | linux_3.16.2-1_all.deb |
Debian | 10 | all | linux | < 3.16.2-1 | linux_3.16.2-1_all.deb |
Debian | 999 | all | linux | < 3.16.2-1 | linux_3.16.2-1_all.deb |
Debian | 13 | all | linux | < 3.16.2-1 | linux_3.16.2-1_all.deb |