What is CVE-2018-3912?

CVE-2018-3912 is a high-severity vulnerability in Samsung Smartthings Hub Sth-Eth-250, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-08-23.

How severe is CVE-2018-3912?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Samsung Smartthings Hub Sth-Eth-250

CVE-2018-3912

On Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17, the video-core process insecurely extracts the fields from the "shard" table of its SQLite database, leading to a buffer overflow on the stack. The strcpy call overflows the destination buffer, which has a size of 128 bytes. An attacker can send an arbitrarily long "secretKey" value in order to exploit this vulnerability.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (32.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Samsung Smartthings Hub Sth-eth-250 — versions Firmware version 0.20.17
Samsung Sth-eth-250
Samsung Sth-eth-250_firmware — versions 0.20.17

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-3912?: CVE-2018-3912 is a high-severity vulnerability in Samsung Smartthings Hub Sth-Eth-250, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-08-23.
How severe is CVE-2018-3912?: High severity. CVSS v3 base score is 7.8 out of 10.