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

Quick assessment

Affected
Mattermost Mattermost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mattermost Server是美国Mattermost公司的一套开源的消息传递平台。 Mattermost Server 存在缓冲区错误漏洞，该漏洞允许攻击者通过提交恶意制作的 POST 正文使服务器崩溃。

CVSS 5.3 · Medium EPSS 0.83% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-0903

Vulnerability Information
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Vulnerability Title
Stack overflow in SAML login in Mattermost
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mattermost Server 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost Server是美国Mattermost公司的一套开源的消息传递平台。 Mattermost Server 存在缓冲区错误漏洞，该漏洞允许攻击者通过提交恶意制作的 POST 正文使服务器崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mattermost Mattermost 6.3 ~ 6.3.3 -

II. Public POCs for CVE-2022-0903

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III. Intelligence Information for CVE-2022-0903

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Other References for CVE-2022-0903 (1)

IV. Related Vulnerabilities

Same product: Mattermost
Same vendor: Mattermost

V. Comments for CVE-2022-0903

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