PT-2018-11703 · Extreme Coin · Extremetoken

Published 2018-07-05 · Updated 2018-08-29 · CVE-2018-13221

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 ExtremeToken (affected versions not specified)

Description The issue concerns an integer overflow in the sell function of the ExtremeToken smart contract implementation for Extreme Coin (XT), an Ethereum token. Specifically, when amount * sellPrice equals zero, it can result in a reduction of 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-2018-13221

Affected Products

Extremetoken

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2018-13221 · Security Note
• https://github.com/BlockChainsSecurity/EtherTokens/tree/master/ExtremeToken · Note
• https://github.com/BlockChainsSecurity/EtherTokens/blob/master/ETHEREUMBLACK/sell%20integer%20overflow.md · Note