CVE-2022-33103

Ubuntu Security Notice USN-5764-1

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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

Se ha detectado que Das U-Boot desde versiones v2020.10 a v2022.07-rc3, contiene una escritura fuera de límites por medio de la función sqfs_readdir()

It was discovered that U-Boot incorrectly handled certain USB DFU download setup packets. A local attacker could use this issue to cause U-Boot to crash, resulting in a denial of service, or possibly execute arbitrary code. Nicolas Bidron and Nicolas Guigo discovered that U-Boot incorrectly handled certain fragmented IP packets. A local attacker could use this issue to cause U-Boot to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-06-13 CVE Reserved
2022-07-01 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (2)

URL	Tag	Source
https://lore.kernel.org/all/20220609140206.297405-1-miquel.raynal%40bootlin.com	X_refsource_misc
https://lore.kernel.org/all/CALO=DHFB+yBoXxVr5KcsK0iFdg+e7ywko4-e+72kjbcS8JBfPw%40mail.gmail.com	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Denx Search vendor "Denx"		U-boot Search vendor "Denx" for product "U-boot"				>= 2020.10 < 2022.07 Search vendor "Denx" for product "U-boot" and version " >= 2020.10 < 2022.07"		-		Affected
Denx Search vendor "Denx"		U-boot Search vendor "Denx" for product "U-boot"				2022.07 Search vendor "Denx" for product "U-boot" and version "2022.07"		rc1		Affected
Denx Search vendor "Denx"		U-boot Search vendor "Denx" for product "U-boot"				2022.07 Search vendor "Denx" for product "U-boot" and version "2022.07"		rc2		Affected
Denx Search vendor "Denx"		U-boot Search vendor "Denx" for product "U-boot"				2022.07 Search vendor "Denx" for product "U-boot" and version "2022.07"		rc3		Affected