CVE-2018-13203 — HIGH (7.5)

Vulnerability Description

The sellBuyerTokens function of a smart contract implementation for SwapToken, an Ethereum token, has an integer overflow in which "amount * sellPrice" can be zero, consequently reducing a seller's assets.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Airswaptoken Project	Airswaptoken	-

Related Weaknesses (CWE)

CWE-190

References

https://github.com/BlockChainsSecurity/EtherTokens/blob/master/ETHEREUMBLACK/selThird Party Advisory
https://github.com/BlockChainsSecurity/EtherTokens/tree/master/SwapTokenThird Party Advisory
https://github.com/BlockChainsSecurity/EtherTokens/blob/master/ETHEREUMBLACK/selThird Party Advisory
https://github.com/BlockChainsSecurity/EtherTokens/tree/master/SwapTokenThird Party Advisory

FAQ

What is CVE-2018-13203?

CVE-2018-13203 is a vulnerability with a CVSS score of 7.5 (HIGH). The sellBuyerTokens function of a smart contract implementation for SwapToken, an Ethereum token, has an integer overflow in which "amount * sellPrice" can be zero, consequently reducing a seller's as...

How severe is CVE-2018-13203?

CVE-2018-13203 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-13203?

Check the references section above for vendor advisories and patch information. Affected products include: Airswaptoken Project Airswaptoken.