CVE-2022-3147: Server-side Denial of Service while processing a specifically crafted JPEG file
First published: Fri Sep 09 2022(Updated: )
Mattermost version 7.0.x and earlier fails to sufficiently limit the in-memory sizes of concurrently uploaded JPEG images, which allows authenticated users to cause resource exhaustion on specific system configurations, resulting in server-side Denial of Service.
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost Mattermost Server | <7.1.0 |
Remedy
Update Mattermost to version v7.1 or higher.
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Frequently Asked Questions
What is CVE-2022-3147?
CVE-2022-3147 is a vulnerability in Mattermost version 7.0.x and earlier that allows authenticated users to cause resource exhaustion resulting in server-side Denial of Service.
How does Mattermost version 7.0.x and earlier handle uploaded JPEG images?
Mattermost version 7.0.x and earlier fails to sufficiently limit the in-memory sizes of concurrently uploaded JPEG images.
What is the impact of CVE-2022-3147?
The vulnerability can cause resource exhaustion on specific system configurations, resulting in server-side Denial of Service.
What is the severity of CVE-2022-3147?
The severity of CVE-2022-3147 is medium with a CVSS score of 6.5.
How can I fix CVE-2022-3147?
To fix CVE-2022-3147, upgrade to Mattermost version 7.1.0 or later.
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