CVE-2023-5967

Denial of Service via crashing the Calls Plugin

View on CVE.org

Published Nov 6, 2023 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Mattermost

Mattermost

unaffected

Version	Status	Constraints
`0`	affected	≤ 8.1.2
`0`	affected	≤ 8.0.3
`0`	affected	≤ 7.8.11
`8.1.3`	unaffected	—
`8.0.4`	unaffected	—
`7.8.12`	unaffected	—

Configuration 1 [-]

OR	cpe:2.3:a:mattermost:mattermost::::::::
	cpe:2.3:a:mattermost:mattermost::::::::
	cpe:2.3:a:mattermost:mattermost::::::::

No data.

No data available yet.

Remediation

Vendor Solution

Update Mattermost Server to versions 7.8.12, 8.0.4, 8.1.3 or higher. Alternatively, upgrade the Calls plugin to 0.17.1 or higher.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-3066	Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin
Github GHSA	GHSA-xvq6-h898-wcj8	Mattermost denial of service vulnerability

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.613% probability within 30 days)

Key SSVC decision points have not yet been added.

References

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

History

No history.

Subscriptions

Mattermost Mattermost

Weaknesses

CWE-754

Sources

CVE record Updated: Sep 12, 2024, 7:30 PM

Status: PUBLISHED
Assigner: Mattermost
Published: Nov 6, 2023, 3:24 PM
Updated: Sep 12, 2024, 7:30 PM
Reserved: Nov 6, 2023, 3:14 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 8:14 AM

Updated: Aug 2, 2024, 8:14 AM

NVD Updated: Jun 17, 2026, 6:49 AM

Status: Modified
Published: Nov 6, 2023, 4:15 PM
Modified: Jun 17, 2026, 6:49 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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