CVE-2024-1402: Denial of service in mattermost mobile apps and server via emoji reactions
First published: Fri Feb 09 2024(Updated: )
Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post.
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/github.com/mattermost/mattermost/server/v8 | >=9.1.0<9.1.5 | 9.1.5 |
| go/github.com/mattermost/mattermost/server/v8 | >=9.2.0<9.2.4 | 9.2.4 |
| go/github.com/mattermost/mattermost/server/v8 | <8.1.8 | 8.1.8 |
| Mattermost Mattermost Server | <=8.1.7 | |
| Mattermost Mattermost Server | >=9.0.0<=9.1.4 | |
| Mattermost Mattermost Server | >=9.2.0<=9.2.3 |
Remedy
Update Mattermost Server to versions 9.3.0, 9.2.4, 9.1.5, 8.1.8 or higher.
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Reference Links
- https://mattermost.com/security-updates
- https://nvd.nist.gov/vuln/detail/CVE-2024-1402
- https://github.com/mattermost/mattermost/commit/64cb0ca8af2dbda1afcddd1604460591a4799b81
- https://github.com/mattermost/mattermost/commit/6d2440de9fd774b67e65e3aac4ab8b6ef9aba2d8
- https://github.com/mattermost/mattermost/commit/81190e2da128a6985914ea7023a69ac400513fc4
- https://github.com/advisories/GHSA-32h7-7j94-8fc2 (Advisory)
- agent/weakness
- agent/remedy
- agent/title
- agent/type
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- source/MITRE
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- alias/GHSA-32h7-7j94-8fc2
- alias/CVE-2024-1402
- agent/last-modified-date
- collector/github-advisory
- agent/trending
- vendor/mattermost
- canonical/mattermost mattermost server
- version/mattermost mattermost server/8.1.7
- version/mattermost mattermost server/9.0.0
- version/mattermost mattermost server/9.1.4
- version/mattermost mattermost server/9.2.0
- version/mattermost mattermost server/9.2.3
- package-manager/go