CVE-2024-24988: Excessive resource consumption when sending long emoji names in user custom status
First published: Thu Feb 29 2024(Updated: )
Mattermost fails to properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server.
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/github.com/mattermost/mattermost/server/v8 | <8.1.9 | 8.1.9 |
| go/github.com/mattermost/mattermost/server/v8 | >=9.2.0<9.2.5 | 9.2.5 |
| go/github.com/mattermost/mattermost/server/v8 | >=9.3.0<9.3.1 | 9.3.1 |
| Mattermost Mattermost Server | <8.1.8 | |
| Mattermost Mattermost Server | >=9.0.0<9.1.5 | |
| Mattermost Mattermost Server | >=9.2.0<9.2.4 | |
| <8.1.8 | ||
| >=9.0.0<9.1.5 | ||
| >=9.2.0<9.2.4 |
Remedy
Update Mattermost Server to versions 9.4.0, 9.3.1, 9.2.5, 8.1.9 or higher.
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Reference Links
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