CVE-2018-14636: Neutron Openstack Neutron Vulnerable To Eavesdropping Vulnerability

MODERATE
Advisory Identifier: GHSA-8q95-jj7p-x93x
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CVSS 5.3
Published
Advisory Summary

CVE-2018-14636 is a MODERATE (CVSS 5.3) openstack neutron vulnerable to eavesdropping vulnerability (General Security Weakness) affecting Neutron libraries in the PyPI ecosystem. The issue involves openstack neutron vulnerable to eavesdropping on private traffic. Remediation is available by upgrading affected packages to version 13.0.0.0b2, 12.0.3, 11.0.5.

CVE-2018-14636 at a Glance

CVE Identifier CVE-2018-14636
GHSA Identifier GHSA-8q95-jj7p-x93x
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification General Security Weakness
Affected Product Neutron
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).

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

How to Fix CVE-2018-14636

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: 13.0.0.0b2 
pip install neutron>=13.0.0.0b2
neutron fixed: 12.0.3 
pip install neutron>=12.0.3
neutron fixed: 11.0.5 
pip install neutron>=11.0.5
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-2018-14636, 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 13.0.0.0b2), 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 General Security Weakness. 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

Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.

CVE-2018-14636 Affected Neutron Versions

3 component(s)
Fixed Versions:
13.0.0.0b212.0.311.0.5
Product / Package Ecosystem Affected Versions Fixed Version
neutron
pypi/neutron
PyPI
≥ 13.0.0.0b1
< 13.0.0.0b2
All 1 versions
13.0.0.0b1
13.0.0.0b2
neutron
pypi/neutron
PyPI
≥ 12.0.0
< 12.0.3
12.0.3
neutron
pypi/neutron
PyPI
≥ 11.0.0
< 11.0.5
11.0.5

References

NVD — CVE-2018-14636 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14636
bugs.launchpad.net/neutron/+bug/173432... WEB
https://bugs.launchpad.net/neutron/+bug/1734320
bugs.launchpad.net/neutron/+bug/176742... WEB
https://bugs.launchpad.net/neutron/+bug/1767422
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636
Neutron Source Repository REPOSITORY
https://github.com/openstack/neutron
Neutron Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/neutron/PYSEC-2018-94.yaml

Frequently Asked Questions

What is CVE-2018-14636?
CVE-2018-14636 is a security vulnerability in Neutron involving Openstack Neutron vulnerable to eavesdropping on private traffic under General Security Weakness.
Which Neutron versions are affected?
Affected versions include releases prior to 13.0.0.0b2, 12.0.3, 11.0.5 across affected packages: neutron.
What version fixes CVE-2018-14636?
Upgrading to 13.0.0.0b2, 12.0.3, 11.0.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is neutron affected?
Yes, neutron is affected in releases prior to 13.0.0.0b2, 12.0.3, 11.0.5. Upgrade your dependency to 13.0.0.0b2, 12.0.3, 11.0.5 or later.
What is the CVSS score of CVE-2018-14636?
CVE-2018-14636 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2018-14636?
CVE-2018-14636 is classified under General Security Weakness.
How can I check PyPI dependencies for CVE-2018-14636?
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-8q95-jj7p-x93x",
  "modified" : "2024-09-25T22:05:37Z",
  "published" : "2022-05-13T01:34:31Z",
  "aliases" : [ "CVE-2018-14636" ],
  "summary" : "Openstack Neutron vulnerable to eavesdropping on private traffic",
  "details" : "Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "neutron"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.0.0.0b1"
      }, {
        "fixed" : "13.0.0.0b2"
      } ]
    } ],
    "versions" : [ "13.0.0.0b1" ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "neutron"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "12.0.0"
      }, {
        "fixed" : "12.0.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "neutron"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.0"
      }, {
        "fixed" : "11.0.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-14636"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.launchpad.net/neutron/+bug/1734320"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.launchpad.net/neutron/+bug/1767422"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openstack/neutron"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/neutron/PYSEC-2018-94.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-08T18:57:43Z",
    "nvd_published_at" : "2018-09-10T19:29:00Z"
  }
}