PT-2018-11678 · Ethereum · Welfare Token Fund

Published 2018-07-05 · Updated 2018-08-24 · CVE-2018-13197

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions Welfare Token Fund (WTF) (affected versions not specified)

Description The issue concerns an integer overflow in the sell function of a smart contract implementation for an Ethereum token. Specifically, when amount * sellPrice equals zero, it can lead to a reduction in a seller's assets.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2018-13197

Affected Products

Welfare Token Fund

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2018-13197 · Security Note
• https://github.com/BlockChainsSecurity/EtherTokens/tree/master/WelfareTokenFund · Note
• https://github.com/BlockChainsSecurity/EtherTokens/blob/master/ETHEREUMBLACK/sell%20integer%20overflow.md · Note