CVE-2018-11239 Integer overflow in n/a

High 7.5 Published Updated

Attackers can exploit an integer overflow in the Hexagon token contract to unauthorizedly increase their digital asset balances.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-11239?

CVE-2018-11239 is a high-severity vulnerability in n/a, published on 19 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-190

Which versions are affected by CVE-2018-11239?

It affects 1 product.

Products include Hexagontoken Hexagon.

How do I fix CVE-2018-11239?

No fix has been published for CVE-2018-11239 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-11239 being exploited?

There is no known exploitation of CVE-2018-11239 in the wild and no public exploit code.

Sources

Also known as GHSA-gqmr-2cq4-rr3c.

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