CVE-2022-3257 – github.com/mattermost/mattermost-server/v6

Package

Manager: go
Name: github.com/mattermost/mattermost-server/v6
Vulnerable Version: >=7.1.0 <7.2.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.0036 pctl0.57461

Details

Mattermost subject to Denial of Service via upload of special GIF 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.

Metadata

Created: 2022-09-25T00:00:21Z
Modified: 2022-09-28T14:14:03Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/09/GHSA-m7w4-q5vg-5xfp/GHSA-m7w4-q5vg-5xfp.json
CWE IDs: ["CWE-434"]
Alternative ID: GHSA-m7w4-q5vg-5xfp
Finding: F027
Auto approve: 1