Privilege Escalation Affecting torvalds/linux package, versions [,3.16.2)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005498
  • published26 Jan 2022
  • disclosed18 Aug 2014
  • creditUnknown

Introduced: 18 Aug 2014

CVE-2014-5206  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 3.16.2 or higher.

Overview

Affected versions of this package are vulnerable to Privilege Escalation. 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.

CVSS Base Scores

version 3.1