Improper input validation in Tuta Tutanota

CVE-2024-23655

Tuta is an encrypted email service. Starting in version 3.118.12 and prior to version 3.119.10, an attacker is able to send a manipulated email so that the user can no longer use the app to get access to received emails. By sending a manipulated email, an attacker could put the app into an unusable state. In this case, a user can no longer access received e-mails. Since the vulnerability affects not only the app, but also the web application, a user in this case has no way to access received emails. This issue was tested with iOS and the web app, but it is possible all clients are affected. Version 3.119.10 fixes this issue.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.008 (52.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-23655?
CVE-2024-23655 is a high-severity vulnerability in Tuta Tutanota, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2024-01-25.
How severe is CVE-2024-23655?
High severity. CVSS v3 base score is 7.5 out of 10.