Resource exhaustion in Mattermost Server - CVE-2018-21250

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Main Vulnerability Database Vulnerabilities #VU30225

Resource exhaustion in Mattermost Server - CVE-2018-21250

Published: June 19, 2020 / Updated: July 17, 2020


Vulnerability identifier: #VU30225
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-21250
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Mattermost Server
Software vendor:
Mattermost, Inc.

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

An issue was discovered in Mattermost Server before 5.2.2, 5.1.2, and 4.10.4. It allows remote attackers to cause a denial of service (memory consumption) via crafted image dimensions.


Remediation

Install update from vendor's website.

External links