CVE-2022-34835

CRITICAL

Das U-Boot <= 2022.07-rc5 - Stack-based Buffer Overflow via I2C md Command

Title source: llm

Description

In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c md" command enables the corruption of the return address pointer of the do_i2c_md function.

References (5)

Core 5

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2025/05/msg00001.html

Exploit, Patch, Vendor Advisory x_refsource_misc

https://lists.denx.de/pipermail/u-boot/2022-June/486113.html

Exploit, Patch, Third Party Advisory x_refsource_misc

https://github.com/u-boot/u-boot/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409

View Exploit ZIP pw:eip

Patch, Vendor Advisory x_refsource_misc

https://source.denx.de/u-boot/u-boot/-/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409

Vendor Advisory

https://cert-portal.siemens.com/productcert/html/ssa-577017.html

Scores

CVSS v3 9.8

EPSS 0.0201

EPSS Percentile 78.5%

Attack Vector NETWORK

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

Details

CWE

CWE-787

Status published

Products (2)

denx/u-boot 2022.07 rc1 (5 CPE variants)

denx/u-boot < 2022.07

Published Jun 30, 2022

Tracked Since Feb 18, 2026