Improper Initialization Affecting kernel-rt-debug-core package, versions <0:4.18.0-305.rt7.72.el8


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTDEBUGCORE-2102535
  • published26 Jul 2021
  • disclosed9 Dec 2020

Introduced: 9 Dec 2020

CVE-2020-35508  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade Centos:8 kernel-rt-debug-core to version 0:4.18.0-305.rt7.72.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-core package and not the kernel-rt-debug-core package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.

CVSS Scores

version 3.1