OpenStack Mistral up to 7.0.3 Workflow Definition YAML File resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in OpenStack Mistral up to 7.0.3. Affected by this issue is some unknown functionality of the component Workflow Definition Handler. The manipulation as part of YAML File results in resource consumption. This vulnerability is identified as CVE-2018-16848. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in OpenStack Mistral up to 7.0.3 (Cloud Software). It has been classified as problematic. Affected is an unknown functionality of the component Workflow Definition Handler. The manipulation as part of a YAML File leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.

The weakness was released 06/15/2020 (Website). The advisory is shared for download at bugs.launchpad.net. This vulnerability is traded as CVE-2018-16848 since 09/11/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The successful exploitation needs a authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 234908 (Ubuntu 16.04 LTS / 18.04 LTS : Mistral vulnerabilities (USN-7465-1)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (234908). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 234908
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS : Mistral vulnerabilities (USN-7465-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/11/2018 🔍
06/15/2020 +643 days 🔍
06/16/2020 +1 days 🔍
04/29/2025 +1778 days 🔍

Sourcesinfo

Advisory: bugs.launchpad.net
Status: Not defined

CVE: CVE-2018-16848 (🔍)
GCVE (CVE): GCVE-0-2018-16848
GCVE (VulDB): GCVE-100-156696

Entryinfo

Created: 06/16/2020 06:59
Updated: 04/29/2025 05:45
Changes: 06/16/2020 06:59 (37), 06/16/2020 07:04 (18), 04/29/2025 05:45 (18)
Complete: 🔍
Cache ID: 216::103

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

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