Security Bulletin: A vulnerability in policycoreutils affects PowerKVM

Summary

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

Vulnerability Details

CVEID: CVE-2016-7545**
DESCRIPTION:** Policycoreutils could allow a remote attacker to execute arbitrary commands on the system, caused by a TIOCSTI ioctl attack in the provided sandbox tool. By persuading a victim to run a specially-crafted program, an attacker could exploit this vulnerability to execute arbitrary commands on the system.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119020 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L)

Affected Products and Versions

PowerKVM 2.1 and 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 as of 3.1.0.2 update 5 or later.

For version 2.1, see https://ibm.biz/BdEnT8. This issue is addressed as of PowerKVM 2.1.1.3-65 update 15 or later. Customers running v2.1 are, in any case, encouraged to upgrade to v3.1.

For v2.1 systems currently running fix levels of PowerKVM prior to 2.1.1, please see <http://download4.boulder.ibm.com/sar/CMA/OSA/05e4c/0/README&gt; for prerequisite fixes and instructions.

Workarounds and Mitigations

None