<p>Upgrade <code>Rocky-Linux:8</code> <code>kernel-core</code> to version 0:4.18.0-372.9.1.el8 or higher.<br>This issue was patched in <code>RLSA-2022:1988</code>.</p>

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

Threat Intelligence

0.04% (11^th percentile)

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Snyk ID SNYK-ROCKY8-KERNELCORE-3194075
published 5 Jan 2023
disclosed 20 Oct 2021

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Introduced: 20 Oct 2021

CVE-2021-42739 Open this link in a new tab CWE-787 Open this link in a new tab

How to fix?

Upgrade Rocky-Linux:8 kernel-core to version 0:4.18.0-372.9.1.el8 or higher.
This issue was patched in RLSA-2022:1988.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

High
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

High
Availability (A)

High

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

Severity

Based on Rocky Linux security rating