Security Bulletin: A vulnerability in libfuse affects PowerKVM

Security Bulletin

Summary

PowerKVM is affected by a vulnerability in libfuse. IBM has now addressed this vulnerability.

Vulnerability Details

CVEID: CVE-2018-10906
DESCRIPTION: libfuse could allow a remote attacker to bypass security restrictions, caused by an error when SELinux is active. An attacker could exploit this vulnerability to bypass the "allow_other" mount option.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/147321 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:L/A:N)

Affected Products and Versions

PowerKVM 3.1

Remediation/Fixes

Customers can update PowerKVM systems by using "yum update".

Fix images are made available via Fix Central. For version 3.1, see https://ibm.biz/BdHggw. This issue is addressed starting with v3.1.0.2 update 16.

Workarounds and Mitigations

none

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support alerts like this.

References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Change History

28 September 2018 - Initial Version

*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":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSZJY4","label":"PowerKVM"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"3.1","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Tips

Security Bulletin: A vulnerability in libfuse affects PowerKVM