What is CVE-2022-0903?

CVE-2022-0903 is a call stack overflow bug in the SAML login feature in Mattermost server that allows an attacker to crash the server via a maliciously crafted POST body.

How does CVE-2022-0903 affect Mattermost server?

CVE-2022-0903 affects Mattermost server in versions up to and including 6.3.2.

How can an attacker exploit CVE-2022-0903?

An attacker can exploit CVE-2022-0903 by submitting a maliciously crafted POST body.

What is the severity of CVE-2022-0903?

CVE-2022-0903 has a severity level of 7.5 (high).

How can I fix CVE-2022-0903 in Mattermost server?

To fix CVE-2022-0903 in Mattermost server, upgrade to a version higher than 6.3.2.

Vulnerability/
CVE-2022-0903

high

7.5

CWE

787

9/3/2022

2/8/2024

CVE-2022-0903: Stack overflow in SAML login in Mattermost

First published: Wed Mar 09 2022(Updated: )

A call stack overflow bug in the SAML login feature in Mattermost server in versions up to and including 6.3.2 allows an attacker to crash the server via submitting a maliciously crafted POST body.

Credit: responsibledisclosure@mattermost.com

Affected Software	Affected Version	How to fix
Mattermost Mattermost Server	<5.37.8
Mattermost Mattermost Server	>=6.0.0<6.1.3
Mattermost Mattermost Server	>=6.2.0<6.2.3
Mattermost Mattermost Server	>=6.3.0<6.3.3

Remedy

Update the Mattermost version to v6.3.3, 6.2.3, 6.1.3, or 5.37.8, depending on the minor version being run

Never miss a vulnerability like this again

Reference Links

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

Frequently Asked Questions

What is CVE-2022-0903?
CVE-2022-0903 is a call stack overflow bug in the SAML login feature in Mattermost server that allows an attacker to crash the server via a maliciously crafted POST body.
How does CVE-2022-0903 affect Mattermost server?
CVE-2022-0903 affects Mattermost server in versions up to and including 6.3.2.
How can an attacker exploit CVE-2022-0903?
An attacker can exploit CVE-2022-0903 by submitting a maliciously crafted POST body.
What is the severity of CVE-2022-0903?
CVE-2022-0903 has a severity level of 7.5 (high).
How can I fix CVE-2022-0903 in Mattermost server?
To fix CVE-2022-0903 in Mattermost server, upgrade to a version higher than 6.3.2.

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agent/title
agent/author
agent/severity
agent/references
agent/last-modified-date
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agent/event
agent/description
agent/tags
vendor/mattermost
canonical/mattermost mattermost server
version/mattermost mattermost server/6.0.0
version/mattermost mattermost server/6.2.0
version/mattermost mattermost server/6.3.0

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