CVE-2012-3371 OpenStack Nova Scheduler denial of service through scheduler_hints
Authenticated users can cause denial of service in OpenStack Nova by sending repeated IDs in scheduler hints when specific filters are enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-3371?
CVE-2012-3371 is a low-severity denial of service vulnerability in n/a, published on 17 Jul 2012. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-20
Which versions are affected by CVE-2012-3371?
2 open source packages ship an affected version, including Nova and nova. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
Nova PyPI | All versions | 12.0.0a0 |
nova PyPI | All versions | 12.0.0a0 |
Products include Openstack Compute, Openstack Essex, Openstack Folsom.
How do I fix CVE-2012-3371?
Upgrade Nova to 12.0.0a0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2012-3371 being exploited?
There is no known exploitation of CVE-2012-3371 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2013-7130 OpenStack Nova Live migration can leak root disk into ephemeral storage
- CVE-2014-0167 OpenStack Compute (Nova) allows remote authenticated users to gain privileges via API requests
- CVE-2015-2687 OpenStack Compute (Nova) Improper Access Control
- CVE-2013-4179 OpenStack Compute (Nova) vulnerable to denial of service via XML Entity Expansion attack
- CVE-2012-2654 OpenStack Compute (Nova) Improper Input Validation
Sources
Also known as DEBIAN-CVE-2012-3371, GHSA-xxgm-qpj5-4886.