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CVE-2014-5206

Public on 2014-08-18
Modified on 2014-09-19
Description

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.

Severity
Important
See what this means
CVSS v3 Base Score
6.0
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2014-09-18 21:04 ALAS-2014-417

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 6.0 AV:L/AC:H/Au:S/C:C/I:C/A:C
NVD CVSSv2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C