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Race Condition Affecting kernel-kdump package, versions <0:3.10.0-862.el7

Severity

 Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELKDUMP-2101381
  • published26 Jul 2021
  • disclosed1 Nov 2017
Report a new vulnerability Found a mistake?

Introduced: 1 Nov 2017

CVE-2017-18203  (opens in a new tab)
CWE-362  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-kdump to version 0:3.10.0-862.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 dm_get_from_kobject function in drivers/md/dm.c in the Linux kernel before 4.14.3 allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices.