CVE-2020-24837

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.48%
Third-Party Advisory etherscan.io
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://etherscan.io/address/0x9d79c6e2a0222b9ac7bfabc447209c58fe9e0dcc#code third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-24837?
CVE-2020-24837 has been scored as a high severity vulnerability.
How to fix CVE-2020-24837?
To fix CVE-2020-24837, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-24837 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-24837 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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