IBM Support

Security Bulletin: Denial of service vulnerability affects IBM Unified Extensible Firmware Interface (CVE-2019-6155)

Created by Barb Foss on
Published URL:
https://www.ibm.com/support/pages/node/883170
883170

Security Bulletin


Summary

IBM has released the following Unified Extensible Firmware Interface (UEFI) fix for System x and BladeCenter systems in response to the following denial of service vulnerability.

Vulnerability Details

CVEID: CVE-2019-6155
DESCRIPTION: IBM System x and IBM BladeCenter systems are vulnerable to a denial of service, caused by a flaw in the SMI Handler. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base Score: 6.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/159885 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Product

Affected Version

BladeCenter HS23E 8038/8039

ahe1 

System x3630 M4 7158
System x3530 M4 7160

bee1 

System x3650 M4 BD 5466

yoe1  

Remediation/Fixes

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

 

Product

Fix Version

BladeCenter HS23E 8038/8039
(ibm_fw_uefi_ahe164c-3.00_anyos_32-64)

ahe164c-3.00

System x3630 M4 7158
System x3530 M4 7160
(ibm_fw_uefi_bee168c-3.20_anyos_32-64)

bee168c-3.20

System x3650 M4 BD 5466
(ibm_fw_uefi_yoe130c-2.40_anyos_32-64)

yoe130c-2.40

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Lenovo Product Security Advisories

SMI Handler Vulnerability in legacy IBM System x and IBM BladeCenter systems

Change History

01 May 2019: Initial version published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Internal Use Only

[{"Business Unit":{"code":"BU016","label":"Multiple Vendor Support"},"Product":{"code":"HW19X","label":"System x->Microsoft Datacenter"},"Component":"UEFI","Platform":[],"Version":"All Versions","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU016","label":"Multiple Vendor Support"},"Product":{"code":"SGUQZ9","label":"System x Blades"},"Component":"UEFI","Platform":[],"Version":"All Versions","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
01 May 2019

UID

ibm10883170

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