Security Bulletin
Summary
PowerKVM is affected by three vulnerabilities in libXfont. These vulnerabilities are now fixed.
Vulnerability Details
CVEID: CVE-2015-1802
DESCRIPTION: X.Org libXfont could allow a local attacker to gain elevated privileges on the system, caused by an error in bdfReadProperties() in the property count when parsing malicious files. An attacker could exploit this vulnerability to execute arbitrary code on the system with root privileges.
CVSS Base Score: 7.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/#/vulnerabilities/101608 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVEID: CVE-2015-1803
DESCRIPTION: X.Org libXfont is vulnerable to a denial of service, caused by an invalid pointer in bdfReadCharacters() when parsing malicious files. A local attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 4.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/#/vulnerabilities/101609 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C)
CVEID: CVE-2015-1804
DESCRIPTION: X.Org libXfont could allow a local attacker to gain elevated privileges on the system, caused by an error in bdfReadCharacters() when parsing malicious files. An attacker could exploit this vulnerability to execute arbitrary code on the system with root privileges.
CVSS Base Score: 7.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/#/vulnerabilities/101610 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C)
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 65.1 and all later 2.1.1 SP3 service builds and 2.1.1 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
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References
Change History
14 August 2015 - 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.
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Document Information
Modified date:
17 June 2018
UID
isg3T1022787