CVE-2017-12119 Denial of service in CPP-Ethereum

High 7.5 Published 19 Jan 2018 Updated 17 Sep 2024

Attackers can cause denial of service in CPP-Ethereum JSON-RPC by sending specially crafted JSON requests that trigger unhandled exceptions.

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-2017-12119?

CVE-2017-12119 is a high-severity denial of service vulnerability in Talos CPP-Ethereum, published on 19 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An exploitable unhandled exception vulnerability exists in multiple APIs of CPP-Ethereum JSON-RPC. Specially crafted JSON requests can cause an unhandled exception resulting in denial of service. An attacker can send malicious JSON to trigger this vulnerability.

Weakness: CWE-754

Which versions are affected by CVE-2017-12119?

It affects 1 product.

Products include Ethereum Cpp-Ethereum.

How do I fix CVE-2017-12119?

No fix has been published for CVE-2017-12119 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-2017-12119 being exploited?

There is no known exploitation of CVE-2017-12119 in the wild and no public exploit code.

Sources

Also known as GHSA-p4g7-mgvx-4rmf.