Out-of-bounds Write Affecting kernel-abi-stablelists 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)

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  • Snyk IDSNYK-ORACLE8-KERNELABISTABLELISTS-5599591
  • 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-abi-stablelists 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-abi-stablelists package and not the kernel-abi-stablelists 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