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Security Bulletin: IBM has released Unified Extensible Firmware Interface (UEFI) fixes in response to Intel Microarchitectural Data Sampling (MDS) Side Channel vulnerabilities.

Created by Barb Foss on
Published URL:
https://www.ibm.com/support/pages/node/958779
958779

Security Bulletin


Summary

IBM has released the following Unified Extensible Firmware Interface (UEFI) fixes for System x, Flex and BladeCenter systems in response to Intel Microarchitectural Data Sampling (MDS) Side Channel vulnerabilities.

Vulnerability Details

CVEID: CVE-2019-11091
DESCRIPTION: Intel Microprocessor could allow a local authenticated attacker to obtain sensitive information, caused by a Microarchitectural Data Sampling Uncacheable Memory (MDSUM) vulnerability that allows uncacheable memory on some microprocessors utilizing speculative execution. An attacker could exploit this vulnerability using a side-channel attack to obtain data that is being processed in the CPU by other apps. Note: This is called the Zombieload attack.
CVSS Base Score: 3.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/160993 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N)

CVEID: CVE-2018-12130
DESCRIPTION: Intel Microprocessor could allow a local authenticated attacker to obtain sensitive information, caused by a Microarchitectural Data Sampling (MDS) vulnerability that fills buffers on some microprocessors utilizing speculative execution. An attacker could exploit this vulnerability using a side-channel attack to obtain data that is being processed in the CPU by other apps. Note: This is called the Zombieload attack.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/160992 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)

CVEID: CVE-2018-12127
DESCRIPTION: Intel Microprocessor could allow a local authenticated attacker to obtain sensitive information, caused by a Microarchitectural Data Sampling (MDS) vulnerability that fills buffers on some microprocessors utilizing speculative execution. An attacker could exploit this vulnerability using a side-channel attack to obtain data that is being processed in the CPU by other apps. Note: This is called the Zombieload attack.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/160991 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)

CVEID: CVE-2018-12126
DESCRIPTION: Intel Microprocessor could allow a local authenticated attacker to obtain sensitive information, caused by a Microarchitectural Data Sampling (MDS) vulnerability that stores buffers on some microprocessors utilizing speculative execution. An attacker could exploit this vulnerability using a side-channel attack to obtain data that is being processed in the CPU by other apps. Note: This is called the Zombieload attack.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/160990 for the current score
CVSS Environmental Score*: Undefined
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

Product

Affected Version

BladeCenter HS23 7875/1929

tke1

BladeCenter HS23E 8038/8039

ahe1

Flex System x220 2585/7906

kse1

Flex System x222 7916

cce1

Flex System x240 7863/8737/8738/8956

b2e1

Flex System x280, x480, x880 7903

n2e1

Flex System x440 7917

cne1

System x iDataPlex dx360 M4 7912/7913

tde1

System x NeXtScale nx360 M4 5455

fhe1

System x3100 M4 2582
System x3250 M4 2583

jqe1

System x3100 M5 5457

j9e1

System x3250 M5 5458

jue1

System x3300 M4 7382

yae1

System x3500 M4 7383

y5e1

System x3550 M4 7914

d7e1

System x3630 M4 7158
System x3530 M4 7160

bee1

System x3650 M4 7915
System x3650 M4 HD 5460

vve1

System x3650 M4 BD 5466

yoe1

System x3750 M4 8718/8722/8733/8752

koe1

System x3850 x6 3837/3839
System x3950 x6 3839

a8e1

Remediation/Fixes

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

Product

Fixed Version

BladeCenter HS23 7875/1929
(ibm_fw_uefi_tke166c-2.70_anyos_32-64)

tke166c-2.70

BladeCenter HS23E 8038/8039
(ibm_fw_uefi_ahe166c-3.10_anyos_32-64)

ahe166c-3.10

Flex System x220 2585/7906
(ibm_fw_uefi_kse164c-2.50_anyos_32-64)

kse164c-2.50

Flex System x222 7916
(ibm_fw_uefi_cce166c-2.30_anyos_32-64)

cce166c-2.30

Flex System x240 7863/8737/8738/8956
(ibm_fw_uefi_b2e168c-2.50_anyos_32-64)

b2e168c-2.50

Flex System x280, x480, x880 7903
(ibm_fw_uefi_n2e134d-2.10_anyos_32-64)

n2e134d-2.10

Flex System x440 7917
(ibm_fw_uefi_cne168c-2.40_anyos_32-64)

cne168c-2.40

System x iDataPlex dx360 M4 7912/7913
(ibm_fw_uefi_tde162c-2.40_anyos_32-64)

tde162c-2.40

System x NeXtScale nx360 M4 5455
(ibm_fw_uefi_fhe126c-2.20_anyos_32-64)

fhe126c-2.20

System x3100 M4 2582
System x3250 M4 2583
(ibm_fw_uefi_jqe186b-2.10_anyos_32-64)

jqe186b-2.10

System x3100 M5 5457
(ibm_fw_uefi_j9e138d-2.00_anyos_32-64)

j9e138d-2.00

System x3250 M5 5458
(ibm_fw_uefi_jue138d-2.00_anyos_32-64)

jue138d-2.00

System x3300 M4 7382
(ibm_fw_uefi_yae162c-2.40_anyos_32-64)

yae162c-2.40

System x3500 M4 7383
(ibm_fw_uefi_y5e164c-2.90_anyos_32-64)

y5e164c-2.90

System x3550 M4 7914
(ibm_fw_uefi_d7e170c-3.00_anyos_32-64)

d7e170c-3.00

System x3630 M4 7158
System x3530 M4 7160
(ibm_fw_uefi_bee170c-3.30_anyos_32-64)

bee170c-3.30

System x3650 M4 7915
System x3650 M4 HD 5460
(ibm_fw_uefi_vve166c-3.00_anyos_32-64)

vve166c-3.00

System x3650 M4 BD 5466
(ibm_fw_uefi_yoe132c-2.50_anyos_32-64)

yoe132c-2.50

System x3750 M4 8718/8722/8733/8752
(ibm_fw_uefi_koe166d-2.50_anyos_32-64)

koe166d-2.50

System x3850 x6 3837/3839
System x3950 x6 3839
(ibm_fw_uefi_a8e132d-1.90_anyos_32-64)

a8e132d-1.90

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Lenovo Product Security Advisories

Change History

09 July 2019: Original 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-\u003EMicrosoft Datacenter"},"Component":"UEFI","Platform":[{"code":"PF009","label":"Firmware"}],"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":[{"code":"PF009","label":"Firmware"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU050","label":"BU NOT IDENTIFIED"},"Product":{"code":"SSWLYD","label":"PureFlex System \u0026 Flex System"},"Component":"UEFI","Platform":[{"code":"PF009","label":"Firmware"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
09 July 2019

UID

ibm10958779

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