CVE-2022-3257

medium

Description

Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service.

References

https://hackerone.com/reports/1620170

https://mattermost.com/security-updates/

Details

Source: MITRE

Published: 2022-09-23

Updated: 2022-09-26

Type: CWE-434

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM