Security Bulletin
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 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
Get Notified about Future Security Bulletins
References
Change History
2015-06-23 - Iniitial 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.
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Document Information
Modified date:
17 June 2018
UID
isg3T1022407