An issue was discovered in Mattermost Server before 5.21.0. Socket read operations are not appropriately restricted, which allows attackers to cause a denial of service, aka MMSA-2020-0005.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14453
Reference (s):
- https://mattermost.com/security-updates/