CVE-2018-3903
CRITICAL
9.9
CVSS 3.0
Description
On Samsung SmartThings Hub STH-ETH-250 devices 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. An attacker can send an HTTP request to trigger this vulnerability. The memcpy call overflows the destination buffer, which has a size of 512 bytes. An attacker can send an arbitrarily long "url" value in order to overwrite the saved-PC with 0x42424242.
Metadata
Severity & Metrics
9.9
CRITICAL CVSS 3.0
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Talos | Samsung | — | Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| — | cna | Classic Buffer Overflow |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 9.9 | CRITICAL | 3.0 | cna | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |