Improper thread synchronization for database operations Fortinet PSIRT Advisories Fortinet PSIRT Contact: Website: https://fortiguard.fortinet.com/faq/psirt-contact FG-IR-21-102 Final 1 1 2021-11-02T00:00:00 Current version 2021-11-02T00:00:00 2021-11-02T00:00:00 A concurrent execution using shared resource with improper Synchronization vulnerability ('Race Condition') [CWE-362] in the customer database interface of FortiPortal may allow an authenticated, low-privilege user to bring the underlying database data into an inconsistent state via specific coordination of web requests. Denial of service FortiPortal version 6.0.5 and below.FortiPortal version 5.3.6 and below.FortiPortal version 5.2.6 and below.FortiPortal version 5.1.2 and below.FortiPortal version 5.0.3 and below.FortiPortal version 4.2.2 and below.FortiPortal version 4.1.2 and below.FortiPortal version 4.0.2 and below. Upgrade to FortiPortal version 6.0.6 or above. Internally discovered and reported by Giuseppe Cocomazzi of Fortinet Product Security team. CVE-2021-36181 3.0 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:U/RC:C https://fortiguard.fortinet.com/psirt/FG-IR-21-102 Improper thread synchronization for database operations Reference>