CVE-2023-2831

Denial of Service while unescaping a Markdown string

Published Jun 16, 2023 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Mattermost fails to unescape Markdown strings in a memory-efficient way, allowing an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters.

Remediation

Vendor Solution

Update Mattermost to version 7.1.10, 7.8.5, 7.9.4, 7.10.1 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-34282 Mattermost fails to unescape Markdown strings in a memory-efficient way, allowing an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters.
References
History
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, 10:59 PM
Reserved
May 22, 2023, 9:30 AM
Status
Modified
Published
Jun 16, 2023, 10:15 AM
Modified
Jun 17, 2026, 5:53 AM