Out-of-bounds Write Affecting kernel-uek-doc package, versions <0:4.1.12-124.66.3.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDOC-3017826
  • 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:7 kernel-uek-doc to version 0:4.1.12-124.66.3.el7uek or higher.
This issue was patched in ELSA-2022-9761.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-doc package and not the kernel-uek-doc package as distributed by Oracle. See How to fix? for Oracle:7 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