CVE-2021-31787

CVSS V2 Medium 6.1 CVSS V3 Medium 6.5
Description
The Bluetooth Classic implementation on Actions ATS2815 chipsets does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and shutdown of a device by flooding the target device with LMP_features_res packets.
Overview
  • CVE ID
  • CVE-2021-31787
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-11-30T20:15:07
  • Last Modified Date
  • 2021-12-03T14:45:31
Weakness Enumerations
CWE URL
CWE-770 http://cwe.mitre.org/data/definitions/770.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:actions-semi:ats2819p_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:actions-semi:ats2819p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:actions-semi:ats2815_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:actions-semi:ats2815:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:actions-semi:ats2819_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:actions-semi:ats2819:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:actions-semi:ats2819s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:actions-semi:ats2819s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:actions-semi:ats2819t_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:actions-semi:ats2819t:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.1
  • Severity
  • MEDIUM
  • Exploitability Score
  • 6.5
  • Impact Score
  • 6.9
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://dl.packetstormsecurity.net/papers/general/braktooth.pdf Broken Link
https://www.actions-semi.com/index.php?id=3581&siteId=4 Vendor Advisory
https://launchstudio.bluetooth.com/ListingDetails/76427 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-31787
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31787
History
Created Old Value New Value Data Type Notes
2022-05-10 06:43:20 Added to TrackCVE
2022-12-05 15:18:49 2021-11-30T20:15Z 2021-11-30T20:15:07 CVE Published Date updated
2022-12-05 15:18:49 2021-12-03T14:45:31 CVE Modified Date updated
2022-12-05 15:18:49 Analyzed Vulnerability Status updated