CVE-2018-3897

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-09-10 · updated 2026-06-17
Weakness: CWE-120

Description

An exploitable buffer overflow vulnerabilities exist in the /cameras/XXXX/clips handler of video-core's HTTP server of Samsung SmartThings Hub with 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 strncpy call overflows the destination buffer, which has a size of 52 bytes. An attacker can send an arbitrarily long "callbackUrl" value in order to exploit this vulnerability.

Affected products

Samsung SmartThings Hub STH-ETH-250: 0.20.17

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0570
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0570

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