SB2020112614 - Multiple vulnerabilities in Intel CSME, TXE and SPS



SB2020112614 - Multiple vulnerabilities in Intel CSME, TXE and SPS

Published: November 26, 2020

Security Bulletin ID SB2020112614
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2020-12303)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 compromise vulnerable system.

The vulnerability exists due to a use-after-free error in DAL subsystem. A local user can escalate privileges on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


2) Improper Initialization (CVE-ID: CVE-2020-8744)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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 subsystem. A local administrator can run a specially crafted application to execute arbitrary code with escalated privileges on the system.


3) Improper Privilege Management (CVE-ID: CVE-2020-8745)

CWE-ID: CWE-269 - Improper Privilege Management

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


The vulnerability allows a local attacker to escalate privileges.

The vulnerability exists due to insufficient control flow management. An attacker with physical access can escalate privileges.


4) Improper access control (CVE-ID: CVE-2020-12297)

CWE-ID: CWE-284 - Improper Access Control

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


The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in Installer. A local user can bypass implemented security restrictions and gain elevated privileges on the target system.


5) Use-after-free (CVE-ID: CVE-2020-8750)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Kernel Mode Driver. A local user can escalate privileges on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Remediation

Install update from vendor's website.