CVE-2024-23655

Public Exploit
Attacker can prevent users from accessing received emails

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.17%
Vendor Advisory github.com
Affected: tutao tutanota
Published at:
Updated at:

References

Link Tags
https://github.com/tutao/tutanota/security/advisories/GHSA-5h47-g927-629g vendor advisory exploit
https://github.com/tutao/tutanota/releases/tag/tutanota-release-3.119.10 release notes

Frequently Asked Questions

What is the severity of CVE-2024-23655?
CVE-2024-23655 has been scored as a high severity vulnerability.
How to fix CVE-2024-23655?
To fix CVE-2024-23655, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-23655 being actively exploited in the wild?
It is possible that CVE-2024-23655 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-23655?
CVE-2024-23655 affects tutao tutanota.
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