Vulnerability · Published Feb 29, 2024 · Assigned by Mattermost
CVE-2024-24988Excessive resource consumption when sending long emoji names in user custom status
Medium 4.3
In plain English
A medium-severity uncontrolled resource consumption in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.7%top 47.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 9.2.5+incompatible, 9.3.1+incompatible | GO-2024-2589 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2024-2589 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2024-2589 |
| Go | github.com/mattermost/mattermost/server/v8 | 9.3.1 | GHSA-6mx3-9qfh-77gj |
| Go | github.com/mattermost/mattermost/server/v8 | 9.2.5 | GHSA-6mx3-9qfh-77gj |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GO-2024-2589 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 0 – through 9.2.40 – through 8.1.80 – through 9.3.0 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L