Out-of-bounds Write Affecting kernel-headers package, versions <0:4.18.0-372.9.1.el8


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (22nd percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELHEADERS-5640210
  • published28 May 2023
  • disclosed10 May 2022

Introduced: 10 May 2022

CVE-2021-42739  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-headers to version 0:4.18.0-372.9.1.el8 or higher.
This issue was patched in ALSA-2022:1988.

NVD Description

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

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.

CVSS Scores

version 3.1