CVE-2018-16848: Denial of Service (DoS) in OpenStack Mistral
Summary
CVE-2018-16848: A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Affects mistral versions < 7.0.4. Fixed in 7.0.4. How to fix ↓
Also tracked for
- mistral · Debian:11
The same CVE-2018-16848 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
OpenStack Mistral is an open-source workflow service that allows users to define and execute tasks and workflows in a cloud environment. It provides a framework for managing complex workflows and automating tasks. Mistral is widely used in cloud computing environments to streamline operations and improve efficiency. However, versions up to and including 7.0.3 are vulnerable to a Denial of Service (DoS) attack.
Vulnerability Detail
The vulnerability in OpenStack Mistral arises from a flaw in the processing of workflow definition YAML files. By submitting a specially crafted YAML file containing nested anchors, an attacker can trigger a resource exhaustion issue, leading to a denial of service. This can result in the unavailability of the Mistral service, disrupting workflow execution and impacting the overall functionality of the cloud environment.
How To Fix
Minimum fixed version
7.0.4
This is the first release that contains the fix.
pip install --upgrade "mistral==7.0.4"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the recommended fix by upgrading to the patched version of OpenStack Mistral.
Conclusion
The vulnerability in OpenStack Mistral can be exploited to cause a denial of service, impacting the availability of the service and disrupting workflow execution. It is crucial to upgrade to the patched version of Mistral (7.0.4 or later) to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for mistral →
FAQ
OpenStack Mistral is an open-source workflow service used for defining and executing tasks and workflows in a cloud environment. It helps automate complex operations and improve efficiency.
A Denial of Service attack is a malicious attempt to disrupt the availability of a service or resource, rendering it inaccessible to legitimate users. In the case of this vulnerability, it can lead to the unavailability of the Mistral service.
The vulnerability arises from a flaw in the processing of workflow definition YAML files. By submitting a specially crafted YAML file containing nested anchors, an attacker can trigger a resource exhaustion issue, resulting in a denial of service.
The vulnerability can lead to a denial of service, causing the Mistral service to become unavailable. This can disrupt workflow execution and impact the overall functionality of the cloud environment.
To fix this vulnerability, it is recommended to upgrade to OpenStack Mistral version 7.0.4 or later. This version includes a fix for the resource exhaustion issue.
References
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