CVE-2018-13877 Denial of service in n/a
Attackers can cause a Denial of Service in the MegaCryptoPolis game by preventing land purchases near malicious contracts.
- 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-2018-13877?
CVE-2018-13877 is a high-severity denial of service vulnerability in n/a, published on 6 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The doPayouts() function of the smart contract implementation for MegaCryptoPolis, an Ethereum game, has a Denial of Service vulnerability. If a smart contract that has a fallback function always causing exceptions buys a land, users cannot buy lands near that contract's land, because those purchase attempts will not be completed unless the doPayouts() function successfully sends Ether to certain neighbors.
Weakness: CWE-20
Which versions are affected by CVE-2018-13877?
It affects 1 product.
Products include Megacryptopolis Megacryptopolis.
How do I fix CVE-2018-13877?
No fix has been published for CVE-2018-13877 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-2018-13877 being exploited?
There is no known exploitation of CVE-2018-13877 in the wild and no public exploit code.
Sources
Also known as GHSA-255m-v9ff-ggrc.