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AUSCERT External Security Bulletin Redistribution
ESB-2016.1853
Security Bulletin: IBM PowerVC is impacted by OpenStack Nova information
disclosure vulnerabilities (CVE-2015-1850, CVE-2015-7548)
29 July 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM PowerVC Standard Edition
Publisher: IBM
Operating System: Linux variants
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2015-7548 CVE-2015-1850
Reference: ESB-2016.0063
ESB-2016.0052
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swgother&my
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Security Bulletin: IBM PowerVC is impacted by OpenStack Nova information
disclosure vulnerabilities (CVE-2015-1850, CVE-2015-7548)
Security Bulletin
Document information
More support for: PowerVC Standard Edition
Software version: 1.2.3, 1.3.0
Operating system(s): Linux
Software edition: Standard
Reference #: N1021457
Modified date: 2016-07-28
Summary
IBM PowerVC is impacted by OpenStack Nova information disclosure
vulnerailities (CVE-2015-1850, CVE-2015-7548)
Vulnerability Details
CVEID: CVE-2015-1850
DESCRIPTION: OpenStack Nova could allow a local attacker to obtain sensitive
information, caused by the failure to provide input format to several calls of
""qemu-img convert"". By overwriting an image convert using a qcow2 backing
file, an attacker could exploit this vulnerability to read arbitrary files
from the host.
CVSS Base Score: 4.9
CVSS Temporal Score:
https://exchange.xforce.ibmcloud.com/vulnerabilities/103849 for more
information
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:N/A:N)
CVEID: CVE-2015-7548
DESCRIPTION: OpenStack Nova could allow a local authenticated attacker to
obtain sensitive information, caused by an error in instance snapshot. By
overwriting the disk inside an instance using a malformed image and requesting
a snapshot, an attacker could exploit this vulnerability to read arbitrary
files from the host.
CVSS Base Score: 5.500
CVSS Temporal Score:
https://exchange.xforce.ibmcloud.com/vulnerabilities/109474 for more
information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
PowerVC Standard Edition 1.2.3.0 through 1.2.3.3
PowerVC Standard Edition 1.3.0.0 through 1.3.0.1
Remediation/Fixes
For PowerVC 1.2.3, update to 1.2.3 FP3 and then apply the IT16325 interim fix
from FixCentral:
http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FOther+software%2FPowerVC&fixids=Security-Fix-1.2.3.3-PowerVC-RHEL-NOARCH-APAR-IT16325&source=SAR
For PowerVC 1.3.0, apply PowerVC 1.3.0 FP2 or later:
https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Other%2Bsoftware&product=ibm/Other+software/PowerVC&release=1.3.0.0&platform=All&function=all&source=fc
Workarounds and Mitigations
None
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References
Complete CVSS v2 Guide
On-line Calculator v2
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
28 July 2016: Original version published
*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
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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