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7.5
CVE-2018-13499: pcncoin token contract can let owner set any balance
CVE-2018-13499 · published 8 years ago
Summary
The pcncoin smart contract that handles token sales contains a math error that lets the contract owner assign any amount of tokens to any user. This could be used to create unlimited tokens or alter balances unfairly. Update the contract code to correct the calculation or deploy a fixed version as soon as possible.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| pcncoin | pcncoin |
All versions
cpe:2.3:a:pcncoin:pcncoin:-:*:*:*:*:*:*:* |
Original advisory text
The mintToken function of a smart contract implementation for Crowdsale, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to ...
The mintToken function of a smart contract implementation for Crowdsale, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.
References
- https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20i... Exploit Third Party Advisory
- https://github.com/BlockChainsSecurity/EtherTokens/tree/master/Crowdsale Third Party Advisory
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker partial control (estimated)
Type
CWE-190Integer Overflow
Timeline
Published9 Jul 2018
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2018-13499 · NVD
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