CVE-2023-39619 Inefficient Regular Expression Complexity in node-email-check

High 7.5 Published Updated

An attacker can cause a denial of service in the Node Email Check library by sending a crafted string to the scpSyntax component.

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-2023-39619?

CVE-2023-39619 is a high-severity denial of service vulnerability in n/a, published on 24 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ReDos in NPMJS Node Email Check v.1.0.4 allows an attacker to cause a denial of service via a crafted string to the scpSyntax component.

Weakness: CWE-1333

Which versions are affected by CVE-2023-39619?

2 open source packages ship an affected version, including node-email-check. It affects 1 product.

PackageAffectedFixed in
node-email-check npmAll versions to 1.0.4None
node-email-check npmAll versions to 1.0.4None

Products include Teomantuncer Node Email Check.

How do I fix CVE-2023-39619?

No fix has been published for CVE-2023-39619 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-2023-39619 being exploited?

There is no known exploitation of CVE-2023-39619 in the wild and no public exploit code.

Sources

Also known as GHSA-9242-6p36-6256.

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