CVE-2013-1838 OpenStack Compute (Nova) Denial of service via a large number of calls to the addFixedIp function

What is CVE-2013-1838?

CVE-2013-1838 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 22 Mar 2013. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenStack Compute (Nova) Grizzly, Folsom (2012.2), and Essex (2012.1) does not properly implement a quota for fixed IPs, which allows remote authenticated users to cause a denial of service (resource exhaustion and failure to spawn new instances) via a large number of calls to the addFixedIp function.

Weakness: CWE-399

Which versions are affected by CVE-2013-1838?

3 open source packages ship an affected version, including nova. It affects 4 products.

Products include Canonical Ubuntu Linux, Openstack Essex, Openstack Folsom, Openstack Grizzly.

How do I fix CVE-2013-1838?

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-2013-1838 being exploited?

There is no known exploitation of CVE-2013-1838 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2013-1838, GHSA-63fq-8fp9-vhwq, PYSEC-2013-44.