CVE-2020-26800 Denial of service in n/a
A stack overflow in the Aleth Ethereum client allows attackers to cause a denial of service via a crafted configuration file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-26800?
CVE-2020-26800 is a medium-severity denial of service vulnerability in n/a, published on 11 Jan 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service.
Weakness: CWE-787
Which versions are affected by CVE-2020-26800?
It affects 1 product.
Products include Ethereum Aleth.
How do I fix CVE-2020-26800?
No fix has been published for CVE-2020-26800 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-2020-26800 being exploited?
There is no known exploitation of CVE-2020-26800 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8pw5-pwp5-8mcx.