CVE-2022-34835

Publication date 30 June 2022

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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	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