What is CVE-2021-28667?

CVE-2021-28667 is a vulnerability in StackStorm before version 3.4.1 that can cause an infinite loop and consume all available memory and disk space in certain situations.

What is the severity of CVE-2021-28667?

The severity of CVE-2021-28667 is rated as high with a CVSS score of 7.5.

How can I fix CVE-2021-28667?

To fix CVE-2021-28667, update StackStorm to version 3.4.1.

Where can I find more information about CVE-2021-28667?

You can find more information about CVE-2021-28667 on the NIST NVD website, the StackStorm website, and the GitHub advisory page.

Vulnerability/
CVE-2021-28667

high

7.5

CWE

835

18/3/2021

24/5/2022

3/8/2024

CVE-2021-28667

Q: How does CVE-2021-28667 affect StackStorm?

CVE-2021-28667 affects StackStorm before version 3.4.1 when Python 3.x is used, the locale is not utf-8, and there is an attempt to log Unicode data from an action or rule name.

First published: Thu Mar 18 2021(Updated: )

StackStorm before 3.4.1, in some situations, has an infinite loop that consumes all available memory and disk space. This can occur if Python 3.x is used, the locale is not utf-8, and there is an attempt to log Unicode data (from an action or rule name).

Credit: cve@mitre.org cve@mitre.org

Affected Software	Affected Version	How to fix
pip/st2client	<3.4.1	3.4.1
Stackstorm Stackstorm	<3.4.1
Python Python	<3.0.0

Remedy

https://stackstorm.com/2021/03/10/stackstorm-v3-4-1-security-fix/

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Reference Links

Frequently Asked Questions

What is CVE-2021-28667?
CVE-2021-28667 is a vulnerability in StackStorm before version 3.4.1 that can cause an infinite loop and consume all available memory and disk space in certain situations.
How does CVE-2021-28667 affect StackStorm?
CVE-2021-28667 affects StackStorm before version 3.4.1 when Python 3.x is used, the locale is not utf-8, and there is an attempt to log Unicode data from an action or rule name.
What is the severity of CVE-2021-28667?
The severity of CVE-2021-28667 is rated as high with a CVSS score of 7.5.
How can I fix CVE-2021-28667?
To fix CVE-2021-28667, update StackStorm to version 3.4.1.
Where can I find more information about CVE-2021-28667?
You can find more information about CVE-2021-28667 on the NIST NVD website, the StackStorm website, and the GitHub advisory page.

collector/github-advisory
alias/GHSA-39mj-fpg2-3jrg
alias/CVE-2021-28667
collector/github-advisory-latest
collector/nvd-index
collector/nvd-cve
agent/author
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
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agent/severity
agent/weakness
agent/references
agent/last-modified-date
agent/tags
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agent/trending
package-manager/pip
vendor/stackstorm
canonical/stackstorm stackstorm
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