SB2023022133 - Multiple vulnerabilities in Intel BIOS firmware for Intel processors

Description

This security bulletin contains information about 6 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2022-26343)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/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 improper access restrictions in the BIOS firmware. A local privileged user can execute arbitrary code with elevated privileges.

2) Use-after-free (CVE-ID: CVE-2022-30539)

CWE-ID: CWE-416 - Use After Free

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

The vulnerability local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the BIOS firmware. A local user can execute arbitrary code with elevated privileges.

3) Improper Initialization (CVE-ID: CVE-2022-32231)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/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 improper initialization in the BIOS firmware. A local user can run a specially crafted application to execute arbitrary code with escalated privileges on the system.

4) Input validation error (CVE-ID: CVE-2022-26837)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/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 in the BIOS firmware. A local user can execute arbitrary code with elevated privileges.

5) Improper Initialization (CVE-ID: CVE-2022-30704)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/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 improper initialization in the Intel(R) TXT SINIT ACM. A local user can run a specially crafted application to execute arbitrary code with escalated privileges on the system.

6) Improper access control (CVE-ID: CVE-2021-0187)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/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 improper access restrictions in the BIOS firmware. A local user can execute arbitrary code with elevated privileges.

Remediation

Install update from vendor's website.

References

• http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00717.html