CVE-2022-33103

Publication date 1 July 2022

Last updated 18 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

Das U-Boot from v2020.10 to v2022.07-rc3 was discovered to contain an out-of-bounds write via the function sqfs_readdir().

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	Vulnerable
	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: 2ac0baa

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/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

Other references