CVE-2019-19196

CVSS V2 Low 3.3 CVSS V3 Medium 6.5
Description
The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0, TLSR823x through 1.3.0, and TLSR826x through 3.3 devices accepts a pairing request with a key size greater than 16 bytes, allowing an attacker in radio range to cause a buffer overflow and denial of service (crash) via crafted packets.
Overview
  • CVE ID
  • CVE-2019-19196
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-02-12T15:15:12
  • Last Modified Date
  • 2020-02-25T20:35:30
Weakness Enumerations
CWE URL
CWE-120 http://cwe.mitre.org/data/definitions/120.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:telink-semi:tlsr8258_ble_sdk:*:*:*:*:*:*:*:* 1 OR 3.4.0
cpe:2.3:h:telink-semi:tlsr8258:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:telink-semi:tlsr8269_ble_sdk:*:*:*:*:*:*:*:* 1 OR 3.3
cpe:2.3:h:telink-semi:tlsr8269:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:telink-semi:tlsr8253_ble_sdk:*:*:*:*:*:*:*:* 1 OR 3.4.0
cpe:2.3:h:telink-semi:tlsr8253:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:telink-semi:tlsr8251_ble_sdk:*:*:*:*:*:*:*:* 1 OR 3.4.0
cpe:2.3:h:telink-semi:tlsr8251:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:telink-semi:tlsr8232_ble_sdk:*:*:*:*:*:*:*:* 1 OR 1.3.0
cpe:2.3:h:telink-semi:tlsr8232:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 3.3
  • Severity
  • LOW
  • Exploitability Score
  • 6.5
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://www.telink-semi.com/ble Vendor Advisory
https://asset-group.github.io/disclosures/sweyntooth/ Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-19196
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19196
History
Created Old Value New Value Data Type Notes
2022-05-10 16:48:49 Added to TrackCVE
2022-12-04 11:10:19 2020-02-12T15:15Z 2020-02-12T15:15:12 CVE Published Date updated
2022-12-04 11:10:19 2020-02-25T20:35:30 CVE Modified Date updated
2022-12-04 11:10:19 Analyzed Vulnerability Status updated