PT-2024-29707 · Denex+1 · U-Boot+1

Simon Diepold · Published 2024-08-23 · Updated 2026-04-17 · CVE-2024-42040

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions DENEX U-Boot versions from its initial commit in 2002 (3861aa5) up to today

Description A Buffer Overflow vulnerability in the net/bootp.c in DENEX U-Boot 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2024-42040

OESA-2026-1971

Affected Products

Debian

U-Boot

References · 18

• https://cve.org/CVERecord?id=CVE-2024-42040 · Security Note
• https://osv.dev/vulnerability/CVE-2024-42040 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-42040 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-1971 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-42040 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-42040 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-42040 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2024-42040 · Vendor Advisory
• https://github.com/u-boot/u-boot/tags · Note
• https://twitter.com/transilienceai/status/1828375237253018006 · Twitter Post
• https://twitter.com/transilienceai/status/1828375243590619415 · Twitter Post
• https://openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1971 · Note
• https://schutzwerk.com/advisories/SCHUTZWERK-SA-2024-004.txt · Note
• https://lists.denx.de/pipermail/u-boot/2024-August/562528.html · Note
• http://seclists.org/fulldisclosure/2024/Aug/38 · Note