CVE Database›CVE-2024-43839

CVE-2024-43839

kernel: bna: adjust 'name' buf size of bna_tcb and bna_ccb structures

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Severity

Moderate

Red Hat Product Security

6.6

CVSS 3.1

Review impact separately from score.

Published · August 17, 2024

Updated · November 21, 2025

Description

A vulnerability was found in the Linux kernel involving insufficient buffer size in the bna_tcb and bna_ccb structures. The buffer, named name, was originally 16 bytes, which was inadequate for all possible sprintf() arguments, especially when handling %s and %d specifiers. This limitation could potentially lead to buffer overflows.

Statement

Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 6.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')