SB2023111519 - Multiple privilege escalation vulnerabilities in AMI Aptio V UEFI/BIOS firmware



SB2023111519 - Multiple privilege escalation vulnerabilities in AMI Aptio V UEFI/BIOS firmware

Published: November 15, 2023

Security Bulletin ID SB2023111519
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2023-39535)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input within the UEFI/BIOS firmware. A local user can escalate privileges on the system.


2) Input validation error (CVE-ID: CVE-2023-39536)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input within the UEFI/BIOS firmware. A local user can escalate privileges on the system.


3) Input validation error (CVE-ID: CVE-2023-39537)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input within the UEFI/BIOS firmware. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.