Resource Exhaustion Affecting kernel-tools package, versions <0:3.14.26-24.46.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNELTOOLS-1681019
  • published27 Sept 2021
  • disclosed13 Oct 2014

Introduced: 13 Oct 2014

CVE-2014-7970  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel-tools to version 0:3.14.26-24.46.amzn1 or higher.
This issue was patched in ALAS-2014-455.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

The pivot_root implementation in fs/namespace.c in the Linux kernel through 3.17 does not properly interact with certain locations of a chroot directory, which allows local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call.

CVSS Scores

version 3.1