CVE-2018-3926

Public Exploit

Description

An exploitable integer underflow vulnerability exists in the ZigBee firmware update routine of the hubCore binary of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The hubCore process incorrectly handles malformed files existing in its data directory, leading to an infinite loop, which eventually causes the process to crash. An attacker can send an HTTP request to trigger this vulnerability.

References

Link	Tags
http://www.securityfocus.com/bid/105162	vdb entry third party advisory broken link
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0593	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2018-3926?: CVE-2018-3926 has been scored as a medium severity vulnerability.
How to fix CVE-2018-3926?: To fix CVE-2018-3926, 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-2018-3926 being actively exploited in the wild?: It is possible that CVE-2018-3926 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-3926?: CVE-2018-3926 affects Talos Samsung.

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Description

Category

CWE-191 – Integer Underflow (Wrap or Wraparound)

References

Frequently Asked Questions