Infinite loop in Mattermost Server - CVE-2020-14447
Published: July 2, 2020
Vulnerability identifier: #VU29479
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-14447
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within large webhook requests. A remote attacker can consume all available system resources and cause denial of service conditions.
Affected software
Mattermost Server
How to mitigate CVE-2020-14447
Install updates from vendor's website.
Mattermost Server - update to 5.23