CVE-2018-3866

Public Exploit

Description

An exploitable buffer overflow vulnerability exists in the samsungWifiScan handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strcpy at [8] overflows the destination buffer, which has a size of 40 bytes. An attacker can send an arbitrarily long 'callbackUrl' value in order to exploit this vulnerability.

Category

9.9
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.48%
Third-Party Advisory talosintelligence.com
Affected: Samsung Samsung
Published at:
Updated at:

References

Link Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0548 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2018-3866?
CVE-2018-3866 has been scored as a critical severity vulnerability.
How to fix CVE-2018-3866?
To fix CVE-2018-3866, 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-2018-3866 being actively exploited in the wild?
It is possible that CVE-2018-3866 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-2018-3866?
CVE-2018-3866 affects Samsung Samsung.
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