Keystone: openstack keystone: denial of service via large http request with long tenant name
Published Apr 12, 2013
6.5
MEDIUMCVSS 3.1
EPSS 3.16%
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.
Affected products
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| Red Hat | Red Hat OpenStack Platform 13 (Queens) | affected |
| |||
| Red Hat | Red Hat OpenStack Platform 16.2 | affected |
| |||
| Red Hat | Red Hat OpenStack Platform 17.1 | affected |
| |||
| Red Hat | Red Hat OpenStack Platform 18.0 | affected |
|
No data.
OpenStack Folsom for RHEL 6
openstack-keystone-0:2012.2.3-7.el6ost
Fixed · RHSA-2013:0708
Red Hat OpenStack Platform 13 (Queens)
redhat-user-workloads/openstack-keystone
Fix deferred
Red Hat OpenStack Platform 16.2
openstack-keystone
Fix deferred
Red Hat OpenStack Platform 16.2
redhat-user-workloads/openstack-keystone
Fix deferred
Red Hat OpenStack Platform 17.1
openstack-keystone
Fix deferred
Red Hat OpenStack Platform 17.1
redhat-user-workloads/openstack-keystone
Fix deferred
Red Hat OpenStack Platform 18.0
openstack-keystone
Fix deferred
Red Hat OpenStack Platform 18.0
redhat-user-workloads/openstack-keystone
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| OpenStack Folsom for RHEL 6 | openstack-keystone-0:2012.2.3-7.el6ost | Fixed | RHSA-2013:0708 |
| Red Hat OpenStack Platform 13 (Queens) | redhat-user-workloads/openstack-keystone | Fix deferred | n/a |
| Red Hat OpenStack Platform 16.2 | openstack-keystone | Fix deferred | n/a |
| Red Hat OpenStack Platform 16.2 | redhat-user-workloads/openstack-keystone | Fix deferred | n/a |
| Red Hat OpenStack Platform 17.1 | openstack-keystone | Fix deferred | n/a |
| Red Hat OpenStack Platform 17.1 | redhat-user-workloads/openstack-keystone | Fix deferred | n/a |
| Red Hat OpenStack Platform 18.0 | openstack-keystone | Fix deferred | n/a |
| Red Hat OpenStack Platform 18.0 | redhat-user-workloads/openstack-keystone | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
Vendor solution
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Red Hat mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.16% (0.03165) | 87.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.01% (0.03009) | 85.62th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.81% (0.01809) | 81.61th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.59% (0.01591) | 87.87th | v3 (v2023.03.01) |
| May 18, 2024 | 1.59% (0.01591) | 87.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.59% (0.01591) | 85.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.32% (0.01319) | 70.74th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.41% (0.01408) | 72.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (11)
- http://rhn.redhat.com/errata/RHSA-2013-0708.html Third Party Advisory
- https://access.redhat.com/errata/RHSA-2013:0708 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2013-0270 vdb-entryx_refsource_REDHATVendor Advisory
- https://bugs.launchpad.net/keystone/+bug/1099025 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=909012 Third Party Advisory
- https://github.com/advisories/GHSA-4ppj-4p4v-jf4p Advisory
- https://github.com/openstack/keystone/commit/7691276b869a86c2b75631d5bede9f61e030d9d8 Third Party Advisory
- https://github.com/openstack/keystone/commit/82c87e5638ebaf9f166a9b07a0155291276d6fdc Third Party Advisory
- https://launchpad.net/keystone/grizzly/2013.1 PatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2013-0270
- https://www.cve.org/CVERecord?id=CVE-2013-0270
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2013-0708.html | Third Party Advisory | |
| https://access.redhat.com/errata/RHSA-2013:0708 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2013-0270 | vdb-entryx_refsource_REDHATVendor Advisory | |
| https://bugs.launchpad.net/keystone/+bug/1099025 | Third Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=909012 | Third Party Advisory | |
| https://github.com/advisories/GHSA-4ppj-4p4v-jf4p | Advisory | |
| https://github.com/openstack/keystone/commit/7691276b869a86c2b75631d5bede9f61e030d9d8 | Third Party Advisory | |
| https://github.com/openstack/keystone/commit/82c87e5638ebaf9f166a9b07a0155291276d6fdc | Third Party Advisory | |
| https://launchpad.net/keystone/grizzly/2013.1 | PatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-0270 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-0270 |
Change history (0)
No recorded changes yet.