High severity · published Jul 5, 2018
CVE-2018-13220
The sell function of a smart contract implementation for MAVCash, an Ethereum token, has an integer overflow in which "amount * sellPrice" can be zero, consequently reducing a…
7.5
CVSS
1%
EPSS
No
On KEV
Description
The sell function of a smart contract implementation for MAVCash, an Ethereum token, has an integer overflow in which "amount * sellPrice" can be zero, consequently reducing a seller's assets.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mavcash · Mavcash Project
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-13220
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-13220
Third Party Advisory
https://github.com/BlockChainsSecurity/EtherTokens/blob/master/ETHEREUMBLACK/sell%20integer%20overflow.md
Third Party Advisory
https://github.com/BlockChainsSecurity/EtherTokens/tree/master/MAVCash
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