CVE-2023-2831

Denial of Service while unescaping a Markdown string

State: Published
Severity: 4.3 Medium
Published: Jun 16, 2023
Updated: Dec 6, 2024
Reserved: May 22, 2023

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.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	Mattermost

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
MattermostMattermost	7.1.9 and earlierAffected 7.8.4 and earlierAffected 7.9.3 and earlierAffected 7.10.0Affected 7.1.10 Not affected 7.8.5Not affected 7.9.4Not affected 7.10.1Not affected

References

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

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