CVE-2021-31615

CVSS V2 Low 2.9 CVSS V3 Medium 5.3
Description
Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0 through 5.2 may permit an adjacent device to inject a crafted packet during the receive window of the listening device before the transmitting device initiates its packet transmission to achieve full MITM status without terminating the link. When applied against devices establishing or using encrypted links, crafted packets may be used to terminate an existing link, but will not compromise the confidentiality or integrity of the link.
Overview
  • CVE ID
  • CVE-2021-31615
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-25T12:15:08
  • Last Modified Date
  • 2022-07-12T17:42:04
Weakness Enumerations
CWE URL
CWE-362 http://cwe.mitre.org/data/definitions/362.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:* 1 OR 4.0 5.2
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 2.9
  • Severity
  • LOW
  • Exploitability Score
  • 5.5
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.6
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://bluetooth.com Vendor Advisory
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/injectable/ Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-31615
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31615
History
Created Old Value New Value Data Type Notes
2022-05-10 07:09:14 Added to TrackCVE
2022-12-05 05:00:55 2021-06-25T12:15Z 2021-06-25T12:15:08 CVE Published Date updated
2022-12-05 05:00:55 2022-07-12T17:42:04 CVE Modified Date updated
2022-12-05 05:00:55 Analyzed Vulnerability Status updated