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StackStorm st2 Infinite Loop Condition

High severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Aug 7, 2023
Withdrawn This advisory was withdrawn on Aug 7, 2023

Package

pip st2client (pip)

Affected versions

< 3.4.1

Patched versions

3.4.1

Description

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).

References

Published by the National Vulnerability Database Mar 18, 2021
Published to the GitHub Advisory Database May 24, 2022
Reviewed Jul 10, 2023
Last updated Aug 7, 2023
Withdrawn Aug 7, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.103%
(44th percentile)

Weaknesses

CVE ID

CVE-2021-28667

GHSA ID

GHSA-39mj-fpg2-3jrg

Source code

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