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Security Bulletin: This Power System update is being released to address CVE 2019-6260

Security Bulletin


Summary

POWER8/POWER9: In response to a security issue with BMC's physical address space, a new Power System firmware update is being released to address Common Vulnerabilities and Exposures issue number CVE 2019-6260.

Vulnerability Details

DESCRIPTION: The ASPEED AST2400 and AST2500 Baseboard Management Controller (BMC) hardware and firmware implement Advanced High-performance Bus (AHB) bridges, which allow arbitrary read and write access to the BMC's physical address space from the host (or from the network in unusual cases where the BMC console uart is attached to a serial concentrator). This CVE applies to the specific cases of iLPC2AHB bridge Pt I, iLPC2AHB bridge Pt II, PCIe VGA P2A bridge, DMA from/to arbitrary BMC memory via X-DMA, UART-based SoC Debug interface, LPC2AHB bridge, PCIe BMC P2A bridge, and Watchdog setup.

CVSS Base Score: 6.7

CVSS Temporal Score: See  https://exchange.xforce.ibmcloud.com/vulnerabilities/155952 for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)

The firmware update can be obtained from FixCentral by specifying the Product and fix level as specified in this Remediation section.

Affected Products and Versions

P9 OpenPOWER releases OP910 and OP920 are affected.

P8 OpenPOWER release OP810, OP815, OP820 and OP825 are affected.

Remediation/Fixes

Customers with the products below running OP910, install OP910.30
1) IBM Power System AC922 (8335-GTG)
Customers with the products below running OP910, install OP910.31
 
1) IBM Power System AC922 (8335-GTC)
 

2) IBM Power System AC922 (8335-GTW)

Customers with the product below running OP910, install OP910.31 (V0.55.1-20190503/BMC 2.06)

1) IBM Power System LC922 (9006-22C)

2) IBM Power System LC922 (5104-22C)

Customers with the products below running OP920, install  OP920.10 (V2.10-20190208/BMC 2.04)

1) IBM Power System LC921 (9006-12P)

2) IBM Power System LC922 (9006-22P)

Customer with the products below running OP810 or OP820, install OP820.30 (OP8_v1.12 2.96_H)

1) IBM Power System S812LC (8348-21C)

Customer with the products below running OP820, install OP820.30 (OP8_v1.12 2.96_G)

1)IBM Power System S822LC (8335-GTB)

Customer with the products below running OP825, install OP825.30 - v3.07_hmc

1) IBM Power Hardware Management Console System Firmware(7063-CR1)

Customer with the products below running OP815  or OP825, install OP825.30 - v3.07

1) IBM Power System S821LC (8001-12C)

2) IBM Power System S822LC (8001-22C)

Customer with the products below running OP825, install OP825.41 -v3.09

1) IBM Power Hyperconverged Systems with Nutanix CS821(8005-12N)

2) IBM Power Hyperconverged Systems with Nutanix CS822 (8005-22N)

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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

*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.

Document Location

Worldwide

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Document Information

Modified date:
07 December 2021

UID

ibm10869130

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