Nova DoS by allocating all Fixed IPs

2013.03.15
Credit: Thierry Carrez
Risk: Medium
Local: No
Remote: Yes
CVE: CVE-2013-1838
CWE: CWE-399


CVSS Base Score: 4/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8/10
Exploit range: Remote
Attack complexity: Low
Authentication: Single time
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

OpenStack Security Advisory: 2013-008 CVE: CVE-2013-1838 Date: March 14, 2013 Title: Nova DoS by allocating all Fixed IPs Reporter: Vish Ishaya (Nebula) Products: Nova Affects: All versions Description: Vish Ishaya reported a vulnerability in Nova where there is no quota for Fixed IPs. Previously the instance quota acted as a proxy for a Fixed IP quota, but if your configuration allows an instance to consume more than one Fixed IP via an extension such as multinic then this is no longer true. Running out of Fixed IPs would result in not being able to spawn new instances. Grizzly (development branch) fix: https://review.openstack.org/#/c/24451/ Folsom fix: https://review.openstack.org/#/c/24452/ Essex fix: https://review.openstack.org/#/c/24453/ References: https://bugs.launchpad.net/nova/+bug/1125468 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2013-1838

References:

https://review.openstack.org/#/c/24451/
http://seclists.org/oss-sec/2013/q1/662


See this note in RAW Version
Vote for this issue:
50%
50%


 

Thanks for you vote!


 

Thanks for you comment!
Your message is in quarantine 48 hours.

Comment it here.


(*) - required fields.  
{{ x.nick }} | Date: {{ x.ux * 1000 | date:'yyyy-MM-dd' }} {{ x.ux * 1000 | date:'HH:mm' }} CET+1
{{ x.comment }}
Copyright 2024, cxsecurity.com

 

Back to Top