Denial of Service (DoS) Affecting torvalds/linux package, versions [,4.0.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006406
  • published26 Jan 2022
  • disclosed2 May 2016
  • creditUnknown

Introduced: 2 May 2016

CVE-2015-4177  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.0.5 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). The collect_mounts function in fs/namespace.c in the Linux kernel before 4.0.5 does not properly consider that it may execute after a path has been unmounted, which allows local users to cause a denial of service (system crash) by leveraging user-namespace root access for an MNT_DETACH umount2 system call.

CVSS Base Scores

version 3.1