CVE-2015-5240: Neutron OpenStack Neutron Race Condition Vulnerability Vulnerability

LOW
Advisory Identifier: GHSA-hhpj-6pj7-wpx5
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CWE-362
Published
Advisory Summary

CVE-2015-5240 is a LOW openstack neutron race condition vulnerability vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Neutron libraries in the PyPI ecosystem. The issue involves openstack neutron race condition vulnerability. Remediation is available by upgrading affected packages to version 7.0.0.

CVE-2015-5240 at a Glance

CVE Identifier CVE-2015-5240
GHSA Identifier GHSA-hhpj-6pj7-wpx5
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product Neutron
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2015-5240

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

neutron fixed: 7.0.0 
pip install neutron>=7.0.0
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 neutron

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2015-5240, inspect your installed packages using pip:

pip show neutron

Analyze the terminal output to locate any version of Neutron in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.0.0), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. In Neutron, 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

Race condition in OpenStack Neutron before 2014.2.4 and 2015.1 before 2015.1.2, when using the ML2 plugin or the security groups AMQP API, allows remote authenticated users to bypass IP anti-spoofing controls by changing the device owner of a port to start with network: before the security group rules are applied.

CVE-2015-5240 Affected Neutron Versions

1 component(s)
Fixed Versions:
7.0.0
Product / Package Ecosystem Affected Versions Fixed Version
neutron
pypi/neutron
PyPI
< 7.0.0
7.0.0

References

NVD — CVE-2015-5240 NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-5240
Security Fix Commit FIX COMMIT
https://github.com/openstack/neutron/commit/767cea23de44a963c6793ffe30ea5c6827d27a38
Security Fix Commit FIX COMMIT
https://github.com/openstack/neutron/commit/bbca973986fdc99eae9d1b2545e8246c0b2be2e2
Security Fix Commit FIX COMMIT
https://github.com/openstack/neutron/commit/fdc3431ccd219accf6a795079d9b67b8656eed8e
access.redhat.com/errata/rhsa-2015:19... WEB
https://access.redhat.com/errata/RHSA-2015:1909
Neutron Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2015-5240
bugs.launchpad.net/neutron/+bug/148911... WEB
https://bugs.launchpad.net/neutron/+bug/1489111
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1258458
Neutron Source Repository REPOSITORY
https://github.com/openstack/neutron
Neutron Security Information SECURITY
https://security.openstack.org/ossa/OSSA-2015-018.html
rhn.redhat.com/errata/rhsa-2015-19... WEB
http://rhn.redhat.com/errata/RHSA-2015-1909.html
Neutron Security Information SECURITY
http://www.openwall.com/lists/oss-security/2015/09/08/9

Frequently Asked Questions

What is CVE-2015-5240?
CVE-2015-5240 is a security vulnerability in Neutron involving OpenStack Neutron Race condition vulnerability under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which Neutron versions are affected?
Affected versions include releases prior to 7.0.0 across affected packages: neutron.
What version fixes CVE-2015-5240?
Upgrading to 7.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is neutron affected?
Yes, neutron is affected in releases prior to 7.0.0. Upgrade your dependency to 7.0.0 or later.
What CWE is associated with CVE-2015-5240?
CVE-2015-5240 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check PyPI dependencies for CVE-2015-5240?
Run the dependency tree command: 'pip show neutron'. 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-hhpj-6pj7-wpx5",
  "modified" : "2024-05-14T20:58:26Z",
  "published" : "2022-05-17T03:52:44Z",
  "aliases" : [ "CVE-2015-5240" ],
  "summary" : "OpenStack Neutron Race condition vulnerability",
  "details" : "Race condition in OpenStack Neutron before 2014.2.4 and 2015.1 before 2015.1.2, when using the ML2 plugin or the security groups AMQP API, allows remote authenticated users to bypass IP anti-spoofing controls by changing the device owner of a port to start with network: before the security group rules are applied.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "neutron"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "7.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2015-5240"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/neutron/commit/767cea23de44a963c6793ffe30ea5c6827d27a38"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/neutron/commit/bbca973986fdc99eae9d1b2545e8246c0b2be2e2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/neutron/commit/fdc3431ccd219accf6a795079d9b67b8656eed8e"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2015:1909"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2015-5240"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.launchpad.net/neutron/+bug/1489111"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1258458"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openstack/neutron"
  }, {
    "type" : "WEB",
    "url" : "https://security.openstack.org/ossa/OSSA-2015-018.html"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2015-1909.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2015/09/08/9"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-14T20:58:26Z",
    "nvd_published_at" : "2015-10-27T16:59:00Z"
  }
}