Security Bulletin: IBM has released Unified Extensible Firmware Interface (UEFI) fixes in response to Intel escalation of privilege vulnerabilities

Summary

IBM has released the Unified Extensible Firmware Interface (UEFI) fixes for System x, Flex and BladeCenter systems in response to the following Intel escalation of privilege vulnerabilities.

Vulnerability Details

CVEID:CVE-2019-11136
**DESCRIPTION:**Multiple Intel processors could allow a local authenticated attacker to gain elevated privileges on the system, caused by insufficient access control in system firmware. An attacker could exploit this vulnerability to gain elevated privileges on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/171364 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)

CVEID:CVE-2019-11137
**DESCRIPTION:**Multiple Intel processors could allow a local authenticated attacker to gain elevated privileges on the system, caused by insufficient input validation in system firmware. An attacker could exploit this vulnerability to gain elevated privileges on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/171365 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
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 x440 7917	CNE1
Flex System x280 X6, x480 X6, x880 X6 7903	N2E1
System x iDataPlex dx360 M4 7912/7913, and Water Cooled	TDE1
System x NeXtScale nx360 M4 5455	FHE1
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/&gt;

Product(s)	Fixed Version(s)

BladeCenter HS23 7875/1929

(ibm_fw_uefi_tke168d-2.80_anyos_32-64)

| tke168d-2.80

BladeCenter HS23E 8038/8039

(ibm_fw_uefi_ahe168d-3.20_anyos_32-64)

| ahe168d-3.20

Flex System x220 2585/7906

(ibm_fw_uefi_kse166d-2.60_anyos_32-64)

| kse166d-2.60

Flex System x222 7916

(ibm_fw_uefi_cce168d-2.40_anyos_32-64)

| cce168d-2.40

Flex System x240 7863/8737/8738/8956

(ibm_fw_uefi_b2e170f-2.60_anyos_32-64)

| b2e170f-2.60

Flex System x440 7917

(ibm_fw_uefi_cne170d-2.50_anyos_32-64)

| cne170d-2.50

Flex System x280 X6, x480 X6, x880 X6 7903

(ibm_fw_uefi_n2e136d-2.20_anyos_32-64)

| n2e136d-2.20

System x iDataPlex dx360 M4 7912/7913, and Water Cooled 7918/7919

(ibm_fw_uefi_tde164d-2.50_anyos_32-64)

| tde164d-2.50

System x NeXtScale nx360 M4 5455

(ibm_fw_uefi_fhe128d-2.30_anyos_32-64)

| fhe128d-2.30

System x3100 M5 5457

(ibm_fw_uefi_j9e140b-2.10_anyos_32-64)

| j9e140b-2.10

System x3250 M5 5458

(ibm_fw_uefi_jue140b-2.10_anyos_32-64)

| jue140b-2.10

System x3300 M4 7382

(ibm_fw_uefi_yae164d-2.50_anyos_32-64)

| yae164d-2.50

System x3500 M4 7383

(ibm_fw_uefi_y5e166d-3.00_anyos_32-64 )

| y5e166d-3.00

System x3550 M4 7914

(ibm_fw_uefi_d7e172d-3.10_anyos_32-64)

| d7e172d-3.10

System x3630 M4 7158

System x3530 M4 7160

(ibm_fw_uefi_bee172d-3.40_anyos_32-64)

| bee172d-3.40

System x3650 M4 7915

System x3650 M4 HD 5460

(ibm_fw_uefi_vve168d-3.10_anyos_32-64)

| vve168d-3.10

System x3650 M4 BD 5466

(ibm_fw_uefi_yoe134d-2.60_anyos_32-64)

| yoe134d-2.60

System x3750 M4 8718/8722/8733/8752

(ibm_fw_uefi_koe168e-2.60_anyos_32-64)

| koe168e-2.60

System x3850 x6 3837/3839

System x3950 x6 3839

(ibm_fw_uefi_a8e134e-2.00_anyos_32-64)

| a8e134e-2.00

Workarounds and Mitigations

None