CVE-2021-37865

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

Published Jan 18, 2022 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Mattermost 6.2 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-24343 Mattermost 6.2 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.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.0037}

epss

{'score': 0.00502}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Dec 6, 2024, 11:11 PM
Reserved
Aug 2, 2021, 12:00 AM
Status
Modified
Published
Jan 18, 2022, 5:15 PM
Modified
Jun 17, 2026, 4:01 AM