Security Bulletin: IBM has released a Unified Extensible Firmware Interface (UEFI) fix in response to an Intel escalation of information disclosure vulnerability

Summary

IBM has released the Unified Extensible Firmware Interface (UEFI) fix for System x systems in response to the following Intel escalation of information disclosure vulnerability.

Vulnerability Details

CVEID:CVE-2020-0543
**DESCRIPTION:**Xen and multiple Intel processors could allow a local authenticated attacker to obtain sensitive information, caused by an incomplete cleanup from specific special register read operations in some Intel® Processors. An attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183116 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

Firmware fix versions are available on Fix Central: <http://www.ibm.com/support/fixcentral/&gt;

System x3250 M5 5458

(ibm_fw_uefi_jue142b-2.20_anyos_32-64)

| jue142b-2.20

System x3100 M5 5457

(ibm_fw_uefi_j9e142b-2.20_anyos_32-64)

| j9e142b-2.20

Workarounds and Mitigations

None