CVE-2018-11239 Information

Description

An integer overflow in the _transfer function of a smart contract implementation for Hexagon (HXG) an Ethereum ERC20 token allows attackers to accomplish an unauthorized increase of digital assets by providing a _to argument in conjunction with a large _value argument as exploited in the wild in May 2018 aka the \burnOverflow\ issue.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://peckshield.com/2018/05/18/burnOverflow/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5