REDHAT-BUG-919648: Low severity openstack compute (nova) vulnerability
Russel Bryant (rbryant) reports:
Title: DoS by allocating all Fixed IPs Impact: Medium 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.
Proposed patches: See attached patches. Unless a flaw is discovered in them, these patches will be merged to Nova master (Grizzly), stable/folsom, and stable/essex branches on the public disclosure date.
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-919648?
The severity of REDHAT-BUG-919648 is classified as medium.
How do I fix REDHAT-BUG-919648?
To fix REDHAT-BUG-919648, implement a quota for Fixed IPs in your Nova configuration.
Which versions of OpenStack Nova are affected by REDHAT-BUG-919648?
REDHAT-BUG-919648 affects all versions of OpenStack Nova.
What type of vulnerability is REDHAT-BUG-919648?
REDHAT-BUG-919648 is a denial-of-service (DoS) vulnerability.
Who reported REDHAT-BUG-919648?
REDHAT-BUG-919648 was reported by Vish Ishaya.