Hi,

The following vulnerability was published for u-boot.

CVE-2024-42040[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2024-42040
https://www.cve.org/CVERecord?id=CVE-2024-42040
[1] https://lists.denx.de/pipermail/u-boot/2024-August/562528.html
[2] https://www.schutzwerk.com/advisories/SCHUTZWERK-SA-2024-004.txt

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

Hi,

https://github.com/u-boot/u-boot/commit/81e5708cc2c865df606e49aed5415adb2a662171
references CVE-2024-42040 and could be the long-awaited fix.

Can you confirm?

Cheers!
Sylvain Beucler
Debian LTS Team

We believe that the bug you reported is fixed in the latest version of
u-boot, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1081557@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Andreas Henriksson <andreas@fatal.se> (supplier of updated u-boot package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 08 Jun 2026 14:48:23 +0200
Source: u-boot
Architecture: source
Version: 2025.01-3.2
Distribution: unstable
Urgency: high
Maintainer: Vagrant Cascadian <vagrant@debian.org>
Changed-By: Andreas Henriksson <andreas@fatal.se>
Closes: 1081557 1136954
Changes:
 u-boot (2025.01-3.2) unstable; urgency=high
 .
   * Non-maintainer upload by the LTS Team.
   * CVE-2024-42040 (Closes: #1081557)
   * CVE-2026-46728 (Closes: #1136954)
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We believe that the bug you reported is fixed in the latest version of
u-boot, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1081557@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Andreas Henriksson <andreas@fatal.se> (supplier of updated u-boot package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 22 Jun 2026 10:38:07 +0200
Source: u-boot
Architecture: source
Version: 2023.01+dfsg-2+deb12u3
Distribution: bookworm-security
Urgency: high
Maintainer: Vagrant Cascadian <vagrant@debian.org>
Changed-By: Andreas Henriksson <andreas@fatal.se>
Closes: 1056750 1081557 1136954
Changes:
 u-boot (2023.01+dfsg-2+deb12u3) bookworm-security; urgency=high
 .
   * Non-maintainer upload by the LTS Team.
   * CVE-2024-42040: buffer overread vulnerability in the DHCP implementation.
     (Closes: #1081557)
   * CVE-2026-46728: mishandles use of unit addresses in a FIT.
     (Closes: #1136954)
   * Remove avr32 arch support removed in dpkg 1.22.0 (Closes: #1056750)
     - now also leads to dak rejecting uploads even for older suites
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