CVE-2022-35897

 

Published at: - 21-11-2022 06:15

Last modified: - 21-11-2022 07:29

Total changes: - 1

Description

An stack buffer overflow vulnerability leads to arbitrary code execution issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. If the attacker modifies specific UEFI variables, it can cause a stack overflow, leading to arbitrary code execution. The specific variables are normally locked (read-only) at the OS level and therefore an attack would require direct SPI modification. If an attacker can change the values of at least two variables out of three (SecureBootEnforce, SecureBoot, RestoreBootSettings), it is possible to execute arbitrary code.

Common Vulnerability Scoring System (CVSS)

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Verification logic

 

Reference

• https://www.insyde.com/security-pledge
• https://www.insyde.com/security-pledge/SA-2022041

 

Keywords

NVD

 

CVE-2022-35897

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures