Out-of-bounds Write Affecting kernel-debug package, versions <0:4.18.0-477.10.1.el8_8


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.08% (35th 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-ORACLE8-KERNELDEBUG-5600357
  • published7 Sept 2022
  • disclosed18 Jul 2022

Introduced: 18 Jul 2022

CVE-2021-33656  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-debug to version 0:4.18.0-477.10.1.el8_8 or higher.
This issue was patched in ELSA-2023-2951.

NVD Description

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

When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.

CVSS Scores

version 3.1