CVE-2013-0270 Keystone: openstack keystone: denial of service via large http request with long tenant name

What is CVE-2013-0270?

CVE-2013-0270 is a medium-severity denial of service vulnerability in Red Hat OpenStack Folsom for RHEL 6, published on 12 Apr 2013. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw was found in OpenStack Keystone. A remote attacker could exploit this vulnerability by sending a large HTTP request, specifically by providing a long tenant name when requesting a token. This could lead to a denial of service, consuming excessive CPU and memory resources on the affected system.

Weakness: CWE-119, CWE-1284

Which versions are affected by CVE-2013-0270?

3 open source packages ship an affected version, including keystone. It affects 1 product.

Products include Openstack Keystone.

How do I fix CVE-2013-0270?

Upgrade keystone to 8.0.0a0 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-2013-0270 being exploited?

There is no known exploitation of CVE-2013-0270 in the wild and no public exploit code.

Other vulnerabilities in Red Hat OpenStack Folsom for RHEL 6

• CVE-2020-12690 Insufficient Session Expiration in OpenStack Keystone High 8.8
• CVE-2019-19687 OpenStack Keystone Credential Leakage High 8.8
• CVE-2026-43001 OpenStack Keystone has an Incorrect Authorization Issue High 7.9
• CVE-2014-2828 OpenStack Identity (Keystone) DoS through V3 API authentication chaining High 7.8
• CVE-2021-38155 OpenStack Keystone allows information disclosure during account locking High 7.5

Sources

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

Also known as DEBIAN-CVE-2013-0270, GHSA-4ppj-4p4v-jf4p, PYSEC-2026-650.