K55051330 : Intel BIOS vulnerability CVE-2021-33123

Security Advisory Description

Improper access control in the BIOS authenticated code module for some Intel® Processors may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2021-33123)

Impact

A local attacker logged in as a privileged user can exploit the vulnerability to potentially enable escalation of privileges.

The following F5 hardware platforms are vulnerable to CVE-2021-33123:

• BIG-IP i850
• BIG-IP i2000 series
• BIG-IP i4000 series
• BIG-IP i5000 series
• BIG-IP i7000 series
• BIG-IP i10000 series
• BIG-IP i11000 series
• BIG-IP i15000 series
• VIPRION B4450N
• VELOS BX110 blade

For more information, refer to K9476: The F5 hardware/software compatibility matrix and K86001294: F5OS hardware/software support matrix.

All versions of Virtual Edition (VE) for the BIG-IP and BIG-IQ products are potentially impacted if the processors underlying the VE installations are affected. Microcode updates from Intel are available to address this issue but must be applied at the hardware level, which is outside the scope of the ability of F5 to support or patch.