Improper Validation of Array Index Affecting kernel-doc package, versions <0:4.18.0-305.120.1.el8_4


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELDOC-6217250
  • published31 Jan 2024
  • disclosed12 Apr 2023

Introduced: 12 Apr 2023

CVE-2023-38409  (opens in a new tab)
CWE-129  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-doc to version 0:4.18.0-305.120.1.el8_4 or higher.
This issue was patched in RHSA-2024:0562.

NVD Description

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

An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Linux kernel before 6.2.12. Because an assignment occurs only for the first vc, the fbcon_registered_fb and fbcon_display arrays can be desynchronized in fbcon_mode_deleted (the con2fb_map points at the old fb_info).

CVSS Scores

version 3.1