openstack-neutron up to 11.0.4/12.0.2/13.0.0.0b1 Linux Bridge ml2 Driver input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in openstack-neutron up to 11.0.4/12.0.2/13.0.0.0b1. Affected by this vulnerability is an unknown functionality of the component Linux Bridge ml2 Driver. The manipulation results in input validation. This vulnerability is identified as CVE-2018-14635. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in openstack-neutron up to 11.0.4/12.0.2/13.0.0.0b1 (Cloud Software). Affected is an unknown function of the component Linux Bridge ml2 Driver. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassing IP address validation. A potential denial of service could occur if an IP address, conflicting with existing guests or routers, is then assigned from outside of the allowed allocation pool. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3 and 11.0.5 are vulnerable.

The bug was discovered 09/17/2018. The weakness was released 09/10/2018 (Website). The advisory is shared for download at bugs.launchpad.net. This vulnerability is traded as CVE-2018-14635 since 07/27/2018. It is possible to launch the attack remotely. The successful exploitation requires a authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 210321 (RHEL 7 : openstack-neutron (RHSA-2018:2715)), which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236965 (Red Hat Update for openstack-neutron (RHSA-2018:2715)).

Upgrading to version 11.0.5, 12.0.3 or 13.0.0.0b2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (210321). Entry connected to this vulnerability is available at VDB-123817. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 210321
Nessus Name: RHEL 7 : openstack-neutron (RHSA-2018:2715)

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: openstack-neutron 11.0.5/12.0.3/13.0.0.0b2
Patch: git.openstack.org

Timelineinfo

07/27/2018 🔍
09/10/2018 +45 days 🔍
09/10/2018 +0 days 🔍
09/11/2018 +1 days 🔍
09/17/2018 +6 days 🔍
11/08/2024 +2244 days 🔍

Sourcesinfo

Advisory: RHSA-2018:2710
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-14635 (🔍)
GCVE (CVE): GCVE-0-2018-14635
GCVE (VulDB): GCVE-100-123816
See also: 🔍

Entryinfo

Created: 09/11/2018 15:10
Updated: 11/08/2024 09:32
Changes: 09/11/2018 15:10 (60), 03/22/2020 11:36 (2), 05/08/2023 09:12 (5), 11/08/2024 09:32 (19)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!