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Denial of service in Mattermost

Moderate severity GitHub Reviewed Published Nov 23, 2022 to the GitHub Advisory Database • Updated Jan 29, 2023

Package

gomod github.com/mattermost/mattermost-server (Go)

Affected versions

< 7.1.4
>= 7.2.0, < 7.2.1
>= 7.3.0, < 7.3.1

Patched versions

7.1.4
7.2.1
7.3.1

Description

A denial-of-service vulnerability in the Mattermost allows an authenticated user to crash the server via multiple requests to one of the API endpoints which could fetch a large amount of data.

References

Published by the National Vulnerability Database Nov 23, 2022
Published to the GitHub Advisory Database Nov 23, 2022
Reviewed Nov 23, 2022
Last updated Jan 29, 2023

Severity

Moderate

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
Low
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:L/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.081%
(37th percentile)

Weaknesses

CVE ID

CVE-2022-4045

GHSA ID

GHSA-v42f-hq78-8c5m

Source code

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