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Security Bulletin: IBM Flex System switch firmware products are affected by a vulnerability in the Kernel (CVE-2020-12464)

Security Bulletin


Summary

IBM Flex System switch firmware products have addressed the following Kernel vulnerability.

Vulnerability Details

CVEID:   CVE-2020-12464
DESCRIPTION:   Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a use-after-free flaw in the usb_sg_cancel function in drivers/usb/core/message.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181213 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Flex System EN2092 1Gb Ethernet Scalable Switch7.8
IBM Flex System Fabric SI4093 GbFSIM 10Gb Scalable Switch7.8
IBM Flex System Fabric EN4093/EN4093R 10Gb Scalable Switch7.8
IBM Flex System CN4093 10Gb Converged Scalable Switch7.8

Remediation/Fixes

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

ProductFix Version

IBM Flex System EN2092 1Gb Ethernet Scalable Switch firmware

(ibm_fw_scsw_en2092-7.8.26.0_anyos_noarch)

7.8.26.0

IBM Flex System Fabric SI4093 System Interconnect Module firmware

(ibm_fw_scsw_si4093-7.8.26.0_anyos_noarch)

7.8.26.0

IBM Flex System Fabric EN4093/EN4093R 10Gb Scalable Switch firmware

(ibm_fw_scsw_en4093r-7.8.26.0_anyos_noarch)

7.8.26.0

IBM Flex System CN4093 10Gb Converged Scalable Switch firmware

(ibm_fw_scsw_cn4093-7.8.26.0_anyos_noarch)

7.8.26.0

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

10 Dec 2020: Initial Publication

*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

[{"Business Unit":{"code":"BU050","label":"BU NOT IDENTIFIED"},"Product":{"code":"SSWLYD","label":"PureFlex System \u0026 Flex System"},"Component":"Switch software","Platform":[{"code":"PF009","label":"Firmware"}],"Version":"All","Edition":""}]

Document Information

Modified date:
15 December 2020

UID

ibm16382326

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