CVE-2013-4100 Denial of service in n/a

High 7.5 Published Updated

Remote attackers can cause a denial of service in Cryptocat by exploiting a username validation flaw.

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-2013-4100?

CVE-2013-4100 is a high-severity denial of service vulnerability in n/a, published on 4 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cryptocat before 2.0.22 has Remote Denial of Service via username

Weakness: CWE-20

Which versions are affected by CVE-2013-4100?

It affects 1 product.

Products include Cryptocat Project Cryptocat.

How do I fix CVE-2013-4100?

No fix has been published for CVE-2013-4100 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-2013-4100 being exploited?

There is no known exploitation of CVE-2013-4100 in the wild and no public exploit code.

Sources

Also known as GHSA-r75p-3r7g-wv56.

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