CVE-2022-3257

LOW 3.1

Server-side Denial of Service while processing a specifically crafted GIF file

CVSS Score

3.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-400
Vendor	mattermost
Product	mattermost
Published	Sep 23, 2022
Last Updated	Dec 6, 2024

Stay Ahead of the Next One

Get instant alerts for mattermost mattermost

Be the first to know when new low vulnerabilities affecting mattermost mattermost are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

Mattermost / Mattermost

unspecified ≤ 7.1.x

References

NVD ↗ CVE.org ↗ EPSS Data ↗

mattermost.com: https://mattermost.com/security-updates/ hackerone.com: https://hackerone.com/reports/1620170

Credits

Thanks to Philippe Antoine (catenacyber) for contributing to this improvement under the Mattermost responsible disclosure policy.