Security Bulletin: PowerKVM is affected by a kexec-tools vulnerability (CVE-2015-0267)

Summary

PowerKVM is affected by a kexec-tools vulnerability (CVE-2015-0267).

Vulnerability Details

CVEID: CVE-2015-0267**
DESCRIPTION:** kexec-tools could allow a local attacker to launch a symlink attack. The script module-setup.sh creates temporary files insecurely. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to various files on the system, which could allow the attacker to overwrite arbitrary files on the system with elevated privileges.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/#/vulnerabilities/103819 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:M/Au:N/C:N/I:P/A:P)

Affected Products and Versions

PowerKVM 2.1

Remediation/Fixes

Fix is made available via Fix Central (https://ibm.biz/BdEnT8) in 2.1.1 build 55 and all later builds and fix packs. For 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. Customers can also update from 2.1.1 (GA and later levels) by using “yum update”.

Workarounds and Mitigations

None