CVE-2021-47971

Weakness

My Notes Safe 5.3 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350000 repeated characters and paste it twice into a new note to trigger an application crash.

References

• https://www.exploit-db.com/exploits/49954
• https://www.vulncheck.com/advisories/my-notes-safe-denial-of-service-via-buffer-overflow