Security Bulletin: A vulnerability in pigz affects PowerKVM (CVE-2015-1191)

Summary

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

Vulnerability Details

CVEID: CVE-2015-1191**
DESCRIPTION:** pigz could allow a remote attacker to traverse directories on the system, caused by an error in pigz.c. An attacker could send a specially-crafted URL request containing “dot dot” sequences (/…/) to view arbitrary files on the system.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/100017 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

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 for 3.1.0.2 update 2 or later.

For version 2.1, see PowerKVM 2.1.1.3-65. Update 12 at https://ibm.biz/BdEnT8 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.