CVE-2018-3903

CVSS V2 High 9 CVSS V3 Critical 9.9
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.
Overview
  • CVE ID
  • CVE-2018-3903
  • Assigner
  • talos-cna@cisco.com
  • Vulnerability Status
  • Undergoing Analysis
  • Published Version
  • 2018-08-23T15:29:01
  • Last Modified Date
  • 2022-04-19T18:15:21
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:samsung:sth-eth-250:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 9
  • Severity
  • HIGH
  • Exploitability Score
  • 8
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.9
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.1
  • Impact Score
  • 6
References
Reference URL Reference Tags
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0574 Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-3903
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3903
History
Created Old Value New Value Data Type Notes
2022-04-20 17:01:28 Added to TrackCVE
2022-12-03 11:24:16 2018-08-23T15:29Z 2018-08-23T15:29:01 CVE Published Date updated
2022-12-03 11:24:16 2022-04-19T18:15:21 CVE Modified Date updated
2022-12-03 11:24:16 Undergoing Analysis Vulnerability Status updated