CVE-2022-34835

Publication date 30 June 2022

Last updated 18 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
u-boot	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Fixed 2022.01+dfsg-2ubuntu2.3
	21.10 impish	Ignored end of life
	20.04 LTS focal	Fixed 2021.01+dfsg-3ubuntu0~20.04.5
	18.04 LTS bionic	Fixed 2020.10+dfsg-1ubuntu0~18.04.3
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
u-boot	Upstream: 8f8c04b

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-5764-1
U-Boot vulnerabilities
6 December 2022