Resource Exhaustion Affecting kernel-kdump package, versions <0:3.10.0-693.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.67% (48th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELKDUMP-2085236
  • published26 Jul 2021
  • disclosed8 Oct 2014

Introduced: 8 Oct 2014

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

How to fix?

Upgrade Centos:7 kernel-kdump to version 0:3.10.0-693.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-kdump package and not the kernel-kdump package as distributed by Centos. See How to fix? for Centos:7 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 Base Scores

version 3.1