CVE-2018-3866: Buffer Overflow
First published: Thu Aug 23 2018(Updated: )
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.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Samsung STH-ETH-250 | =0.20.17 | |
| Samsung STH-ETH-250 Firmware |
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Frequently Asked Questions
What is the severity of CVE-2018-3866?
CVE-2018-3866 has a high severity level due to its potential for remote code execution through a buffer overflow.
How do I fix CVE-2018-3866?
To mitigate CVE-2018-3866, upgrade the Samsung SmartThings Hub STH-ETH-250 firmware to a version above 0.20.17.
What systems are affected by CVE-2018-3866?
CVE-2018-3866 affects the Samsung SmartThings Hub STH-ETH-250 running firmware version 0.20.17.
Can CVE-2018-3866 be exploited remotely?
Yes, CVE-2018-3866 can be exploited remotely due to vulnerabilities in the video-core HTTP server.
What type of vulnerability is CVE-2018-3866?
CVE-2018-3866 is a buffer overflow vulnerability that can lead to arbitrary code execution.
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- vendor/samsung
- canonical/samsung sth-eth-250
- version/samsung sth-eth-250/0.20.17
- canonical/samsung sth-eth-250 firmware