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Debian dla-4642 : u-boot - security update

high Nessus Plugin ID 322326

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4642 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4642-1 [email protected] https://www.debian.org/lts/security/ Andreas Henriksson June 23, 2026 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : u-boot Version : 2021.01+dfsg-5+deb11u3 2023.01+dfsg-2+deb12u3 CVE ID : CVE-2024-42040 CVE-2026-46728 Debian Bug : 1081557 1136954

 Multiple issues where found in u-boot, a cross-platform bootloader for embedded systems, which could lead to information leak and signature verification bypass.

 CVE-2024-42040

 buffer overread vulnerability in the DHCP implementation

 CVE-2026-46728

 mishandles use of unit addresses in a FIT

 For Debian 11 bullseye, these problems have been fixed in version 2021.01+dfsg-5+deb11u3.

 For Debian 12 bookworm, these problems have been fixed in version 2023.01+dfsg-2+deb12u3.

 We recommend that you upgrade your u-boot packages.

 For the detailed security status of u-boot please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/u-boot

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the u-boot packages.

See Also

https://packages.debian.org/source/bookworm/u-boot

https://packages.debian.org/source/bullseye/u-boot

https://security-tracker.debian.org/tracker/CVE-2024-42040

https://security-tracker.debian.org/tracker/CVE-2026-46728

https://security-tracker.debian.org/tracker/source-package/u-boot

Plugin Details

Severity: High

ID: 322326

File Name: debian_DLA-4642.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/24/2026

Updated: 6/24/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:N/A:C

CVSS Score Source: CVE-2024-42040

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-46728

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:u-boot-imx, p-cpe:/a:debian:debian_linux:u-boot-qemu, p-cpe:/a:debian:debian_linux:u-boot-rockchip, p-cpe:/a:debian:debian_linux:u-boot-exynos, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:u-boot, p-cpe:/a:debian:debian_linux:u-boot-qcom, p-cpe:/a:debian:debian_linux:u-boot-omap, p-cpe:/a:debian:debian_linux:u-boot-amlogic, p-cpe:/a:debian:debian_linux:u-boot-tegra, p-cpe:/a:debian:debian_linux:u-boot-tools, p-cpe:/a:debian:debian_linux:u-boot-stm32, p-cpe:/a:debian:debian_linux:u-boot-rpi, p-cpe:/a:debian:debian_linux:u-boot-mvebu, p-cpe:/a:debian:debian_linux:u-boot-sunxi, cpe:/o:debian:debian_linux:12.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 6/23/2026

Vulnerability Publication Date: 8/23/2024

Reference Information

CVE: CVE-2024-42040, CVE-2026-46728