Security Bulletin
Summary
If an authenticated user deletes an instance while it is in resize state, it will cause the original instance to not be deleted from the compute node it was running on. An attacker can use this to launch a denial of service attack. All Nova setups are affected.
Vulnerability Details
CVEID: CVE-2016-7498
DESCRIPTION: OpenStack Compute (nova) 13.0.0 does not properly delete instances from compute nodes, which allows remote authenticated users to cause a denial of service (disk consumption) by deleting instances while in the resize state. NOTE: This vulnerability exists because of a CVE-2015-3280 regression.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117394 for the current score.
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
PowerVC Standard Edition 1.3.1.x
Remediation/Fixes
For PowerVC 1.3.1, update to 1.3.1 fix pack 2 and then apply the IT21367_IT21368_IT21369 interim fix from FixCentral: http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FOther+software%2FPowerVC&fixids=1.3.1.2-PowerVC-RHEL-NOARCH-APAR-IT21367_IT21368_IT21369&source=dbluesearch
Workarounds and Mitigations
None
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References
Acknowledgement
None
*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
nas8N1022227