Vulnerability Details CVE-2018-3866
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 64.3%
CVSS Severity
CVSS v3 Score 9.9
CVSS v2 Score 9.0
References
Products affected by CVE-2018-3866
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cpe:2.3:h:samsung:sth-eth-250:-
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cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17