CVE-2021-28136

CVSS V2 Low 3.3 CVSS V3 Medium 6.5
Description
The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not properly handle the reception of multiple LMP IO Capability Request packets during the pairing process, allowing attackers in radio range to trigger memory corruption (and consequently a crash) in ESP32 via a replayed (duplicated) LMP packet.
Overview
  • CVE ID
  • CVE-2021-28136
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-09-07T06:15:07
  • Last Modified Date
  • 2021-09-09T23:32:23
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:* 1 OR 4.4
cpe:2.3:h:espressif:esp32:-:*:*:*:*:*:*:* 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
https://github.com/espressif/esp32-bt-lib Product Third Party Advisory
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf Technical Description Third Party Advisory
https://www.espressif.com/en/products/socs/esp32 Product Vendor Advisory
https://github.com/espressif/esp-idf Product Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-28136
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28136
History
Created Old Value New Value Data Type Notes
2022-05-10 16:06:13 Added to TrackCVE
2022-12-05 09:40:50 2021-09-07T06:15Z 2021-09-07T06:15:07 CVE Published Date updated
2022-12-05 09:40:50 2021-09-09T23:32:23 CVE Modified Date updated
2022-12-05 09:40:50 Analyzed Vulnerability Status updated