# CVE-2024-42040: u-boot: Buffer Overflow vulnerability in the net/bootp.c in DENEX U-Boot from its initial commit in 2002 (3861aa5) up to toda...

CVE-2024-42040 is fixed in u-boot on 1 platform, first by DEBIAN-CVE-2024-42040, released August 23, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-42040
- Priority: High
- CVSS: 8.1 (high)
- EPSS: 0.0060
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 23, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | u-boot Debian 12.15 (bookworm) | 2023.01+dfsg-2+deb12u3 | [DEBIAN-CVE-2024-42040](https://patchblox.com/security/data/fix/linux/debian-cve-2024-42040.md) | Aug 23, 2024 |
| Linux | u-boot Debian 13.5 (trixie) | 2025.01-3+deb13u1 | [DEBIAN-CVE-2024-42040](https://patchblox.com/security/data/fix/linux/debian-cve-2024-42040.md) | Aug 23, 2024 |
| Linux | u-boot Debian 14 | 2025.01-3.2 | [DEBIAN-CVE-2024-42040](https://patchblox.com/security/data/fix/linux/debian-cve-2024-42040.md) | Aug 23, 2024 |

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Data as of 2026-11-09T19:38:12Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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