Race Condition Affecting kernel-tools-libs package, versions <0:3.10.0-1160.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.98% (84th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELTOOLSLIBS-2173191
  • published26 Jul 2021
  • disclosed25 Sept 2018

Introduced: 25 Sep 2018

CVE-2018-20836  (opens in a new tab)
CWE-362  (opens in a new tab)
CWE-416  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Centos:7 kernel-tools-libs to version 0:3.10.0-1160.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-libs package and not the kernel-tools-libs package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

CVSS Scores

version 3.1