CVE-2014-2828: Keystone Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-6mv3-p2gr-wgqf
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CVSS 7.5
CWE-287
Published
Advisory Summary

CVE-2014-2828 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-287: Improper Authentication) affecting Keystone libraries in the PyPI ecosystem. The issue involves openstack identity (keystone) dos through v3 api authentication chaining. Remediation is available by upgrading affected packages to version 8.0.0a0.

CVE-2014-2828 at a Glance

CVE Identifier CVE-2014-2828
GHSA Identifier GHSA-6mv3-p2gr-wgqf
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-287: Improper Authentication
Affected Product Keystone
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2014-2828

To remediate this vulnerability, upgrade all affected Keystone dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

keystone fixed: 8.0.0a0 
pip install keystone>=8.0.0a0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show keystone

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2014-2828, inspect your installed packages using pip:

pip show keystone

Analyze the terminal output to locate any version of Keystone in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.0.0a0), your application is affected.

Note: The pip show keystone command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Keystone, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The V3 API in OpenStack Identity (Keystone) 2013.1 before 2013.2.4 and icehouse before icehouse-rc2 allows remote attackers to cause a denial of service (CPU consumption) via a large number of the same authentication method in a request, aka "authentication chaining."

CVE-2014-2828 Affected Keystone Versions

1 component(s)
Fixed Versions:
8.0.0a0
Product / Package Ecosystem Affected Versions Fixed Version
keystone
pypi/keystone
PyPI
< 8.0.0a0
8.0.0a0

References

NVD — CVE-2014-2828 NVD
https://nvd.nist.gov/vuln/detail/CVE-2014-2828
Security Fix Commit FIX COMMIT
https://github.com/openstack/keystone/commit/ce6cedb30c5c4b4cf4db9380f09443de22414b39
Security Fix Commit FIX COMMIT
https://github.com/openstack/keystone/commit/e364ba5b12de8e4c11bd80bcca903f9615dcfc2e
Security Fix Commit FIX COMMIT
https://github.com/openstack/keystone/commit/ef868ad92c00e23a4a5e9eb71e3e0bf5ae2fff0c
bugs.launchpad.net/keystone/+bug/13002... WEB
https://bugs.launchpad.net/keystone/+bug/1300274
Keystone Source Repository REPOSITORY
https://github.com/openstack/keystone
Keystone Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2014-106.yaml
rhn.redhat.com/errata/rhsa-2014-16... WEB
http://rhn.redhat.com/errata/RHSA-2014-1688.html
Keystone Security Information SECURITY
http://www.openwall.com/lists/oss-security/2014/04/10/20

Frequently Asked Questions

What is CVE-2014-2828?
CVE-2014-2828 is a security vulnerability in Keystone involving OpenStack Identity (Keystone) DoS through V3 API authentication chaining under CWE-287: Improper Authentication.
Which Keystone versions are affected?
Affected versions include releases prior to 8.0.0a0 across affected packages: keystone.
What version fixes CVE-2014-2828?
Upgrading to 8.0.0a0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keystone affected?
Yes, keystone is affected in releases prior to 8.0.0a0. Upgrade your dependency to 8.0.0a0 or later.
What is the CVSS score of CVE-2014-2828?
CVE-2014-2828 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2014-2828?
CVE-2014-2828 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check PyPI dependencies for CVE-2014-2828?
Run the dependency tree command: 'pip show keystone'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6mv3-p2gr-wgqf",
  "modified" : "2025-04-13T23:14:20Z",
  "published" : "2022-05-17T04:03:06Z",
  "aliases" : [ "CVE-2014-2828" ],
  "summary" : "OpenStack Identity (Keystone) DoS through V3 API authentication chaining",
  "details" : "The V3 API in OpenStack Identity (Keystone) 2013.1 before 2013.2.4 and icehouse before icehouse-rc2 allows remote attackers to cause a denial of service (CPU consumption) via a large number of the same authentication method in a request, aka \"authentication chaining.\"",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "keystone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.0.0a0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2014-2828"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/keystone/commit/ce6cedb30c5c4b4cf4db9380f09443de22414b39"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/keystone/commit/e364ba5b12de8e4c11bd80bcca903f9615dcfc2e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/keystone/commit/ef868ad92c00e23a4a5e9eb71e3e0bf5ae2fff0c"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.launchpad.net/keystone/+bug/1300274"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openstack/keystone"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2014-106.yaml"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2014-1688.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2014/04/10/20"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-14T21:00:14Z",
    "nvd_published_at" : "2014-04-15T14:55:00Z"
  }
}