Improper Initialization Affecting kernel-debug-modules package, versions <0:4.18.0-305.el8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL8-KERNELDEBUGMODULES-3993677
  • 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 RHEL:8 kernel-debug-modules to version 0:4.18.0-305.el8 or higher.
This issue was patched in RHSA-2021:1578.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules package and not the kernel-debug-modules package as distributed by RHEL. See How to fix? for RHEL: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