Home/CVE/A call stack overflow bug in the SAML login feature in Mattermost server in versions up to and including 6.3.2 allows an
CVE

CVE-2022-0903

A call stack overflow bug in the SAML login feature in Mattermost server in versions up to and including 6.3.2 allows an

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.

MEDIUM · CVSS 5.3 EPSS 0.00262
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  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-787Out-of-bounds Write
▤

Affected Products & Versions

4
mattermost server< 5.37.8
mattermost server>= 6.0.0 and < 6.1.3
mattermost server>= 6.2.0 and < 6.2.3
mattermost server>= 6.3.0 and < 6.3.3
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · responsibledisclosure@mattermost.com
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Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Mar 2022 · 05:45 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://mattermost.com/security-updates/Vendor Advisory
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