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CVE-2012-3371

Publication date 11 July 2012

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The Nova scheduler in OpenStack Compute (Nova) Folsom (2012.2) and Essex (2012.1), when DifferentHostFilter or SameHostFilter is enabled, allows remote authenticated users to cause a denial of service (excessive database lookup calls and server hang) via a request with many repeated IDs in the os:scheduler_hints section. Dan Prince from Red Hat reported a vulnerability in Nova scheduler nodes. By creating servers with malicious scheduler_hints, an authenticated user may generate a huge amount of database calls, potentially resulting in a Denial of Service attack against Nova scheduler nodes. Only setups exposing the OpenStack API and enabling DifferentHostFilter and/or SameHostFilter are affected.

Read the notes from the security team

Status

Package Ubuntu Release Status
nova 12.04 LTS precise
Fixed 2012.1+stable~20120612-3ee026e-0ubuntu1.2
11.10 oneiric
Not affected
11.04 natty
Not affected
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release

Notes

tyhicks

Essex and newer are affected

References

Related Ubuntu Security Notices (USN)

Other references