CVE-2024-23655 Attacker can prevent users from accessing received emails
An attacker can send a manipulated email that prevents users from accessing their inbox in the Tuta email service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-23655?
CVE-2024-23655 is a high-severity denial of service vulnerability in tutao tutanota, published on 25 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-20
Which versions are affected by CVE-2024-23655?
It affects 1 product.
Products include Tuta Tutanota.
How do I fix CVE-2024-23655?
No fix has been published for CVE-2024-23655 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-23655 being exploited?
There is no known exploitation of CVE-2024-23655 in the wild and no public exploit code.
Other vulnerabilities in tutao tutanota
Sources
Also known as GHSA-5h47-g927-629g.