CVE-2024-42040

Published: Aug 23, 2024Modified: Apr 3, 2026

8.1

Vector

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

Exploitability: 2.8 / Impact: 5.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Buffer Overflow vulnerability in the net/bootp.c in DENEX U-Boot from its initial commit in 2002 (3861aa5) up to today on any platform allows an attacker on the local network to leak memory from four up to 32 bytes of memory stored behind the packet to the network depending on the later use of DHCP-provided parameters via crafted DHCP responses.

Affected (1)

Products: Denx: U Boot

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Denx U Boot	Up to 2025.10

Related CWEs

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (3)

https://github.com/u-boot/u-boot/tags

Source: cve@mitre.org

Release Notes

https://www.schutzwerk.com/advisories/SCHUTZWERK-SA-2024-004.txt

Source: cve@mitre.org

MitigationThird Party Advisory

http://seclists.org/fulldisclosure/2024/Aug/38

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListMitigationThird Party Advisory

Timeline

No history available yet.