IBM Support

Security Bulletin: This Power System firmware update is being released to address DHCP issue number CVE-2018-5732

Created by Sunitha Harish on
Published URL:
https://www.ibm.com/support/pages/node/716563
716563

Security Bulletin


Summary

POWER9/POWER8: In response to a recently reported DHCP client security vulnerability, a new Power System firmware update is being released to address Common Vulnerabilities and Exposures issue number CVE-2018-5732.

Vulnerability Details

CVEID: CVE-2018-5732

DESCRIPTION: ISC DHCP is vulnerable to a denial of service, caused by a buffer overflow in dhclient. By sending a specially crafted response, a remote attacker could overflow a buffer and possibly execute arbitrary code on the system or cause the server to crash.

CVSS Base Score: 7.5

CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/139613 for the current score

CVSS Environmental Score*: Undefined

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

Firmware releases FW910 is affected.

Firmware releases FW810, FW820, FW830, FW840, FW860 are affected.

Remediation/Fixes

Customers with the products below, install FW910.10

1) IBM Power System S922 (9009-22A)

2) IBM Power System H922 (9223-22H)

3) IBM Power System S914 (9009-41A)

4) IBM Power System S924 (9009-42A)

5) IBM Power System H924 (9223-42H)

6) IBM Power System L922 (9008-22L)

Customers with the products below, install FW860.60

1) IBM Power System S812(8284-21A)

2) IBM Power System S822(8284-22A)

3) IBM Power System S814(8286-41A)

4) IBM Power System S824(8286-42A)

5) IBM Power System S812L(8247-21L)

6) IBM Power System S822L(8247-22L)

7) IBM Power System S824L(8247-42L)

8) IBM Power System E850(8408-E8E)

9) IBM Power System E850C(8408-44E)

10) IBM Power System E870(9119-MME)

11) IBM Power System E870C(9080-MME)

12) IBM Power System E880(9119-MHE)

13) IBM Power System E880C(9080-MHE)

14) IBM Power System S812L(5148-21L)

15) IBM Power System S822L(5148-22L)

Workarounds and Mitigations

Static IP can be used for the service processor network configurations instead of dynamic(DHCP) IP to avoid the problem.

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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

Change History

Added Workarounds and Mitigations

*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.

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SGDMMD","label":"Power System AC922 Server (8335-GTC)"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"LOB57","label":"Power"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"HW1A1","label":"IBM Power Systems"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"LOB57","label":"Power"}}]

Document Information

Modified date:
07 December 2021

UID

ibm10716563

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