CVE Database›Document archive›CVE-2024-38538

CVE-2024-38538

kernel: net: bridge: xmit: make sure we have at least eth header len bytes

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Severity

Moderate

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · June 19, 2024

Updated · November 2, 2026

Description

A vulnerability was found in the Linux kernel in the net: bridge component, where the xmit function in the bridge device could trigger an uninitialized value error if a short skb (less than the required ETH_HLEN bytes) is sent. This condition could cause unexpected behavior due to insufficient checks before pulling data from the packet, potentially leading to data inconsistency.

Statement

This vulnerability in is classified as moderate severity because it requires local access and specific packet manipulation to exploit. While it may impact system stability, it does not broadly compromise system security, as its effects remain limited to certain packet-handling scenarios.

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 · 7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CWE-99 · Improper Control of Resource Identifiers