CVE-2020-24837

HIGH

7.5

Description

An integer underflow has been found in the latest version of ZCFees. The variables 'currPeriodIdx' and 'lastPeriodExecIdx' are both unsigned integers, and the result of the minus operation may be a negative integer which leads to an underflow. The attackers can modify the current timestamp of the transaction somehow and block the execution of the process function.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/10/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

zcfees_project:zcfees

Weaknesses (CWE)

CWE-191

References

https://etherscan.io/address/0x9d79c6e2a0222b9ac7bfabc447209c58fe9e0dcc#code(cve@mitre.org)

https://etherscan.io/address/0x9d79c6e2a0222b9ac7bfabc447209c58fe9e0dcc#code(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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