SB2020061113 - Multiple vulnerabilities in Intel CSME

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2020-0534)

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in subsystem. A local user can trigger out-of-bounds write and execute arbitrary code on the target system with elevated privileges.

Note: This vulnerability affects the following versions of Intel CSME:

• 12.0 through 12.0.63

2) Buffer overflow (CVE-ID: CVE-2020-0542)

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

The vulnerability exists due to a boundary error in subsystem. A local user can trigger memory corruption and gain elevated privileges on the target system.

Note: This vulnerability affects the following versions of Intel CSME:

• 12.0 through 12.0.63

3) Out-of-bounds write (CVE-ID: CVE-2020-0541)

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in subsystem. A local user can trigger out-of-bounds write and execute arbitrary code on the target system with elevated privileges.

• 12.0 through 12.0.63

Remediation

Install update from vendor's website.

References

• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00295.html