VulnerabilityModified
CVE-2021-31787
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…
MEDIUM 6.5EPSS 0.49%
Does this matter?
Lower severity and a low EPSS score (0.49%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.49% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- actions-semi/ats2819p firmware · actions-semi/ats2815 firmware · actions-semi/ats2819 firmware · actions-semi/ats2819s firmware · actions-semi/ats2819t firmware
- Source
- cve@mitre.org
References
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdfBroken Link
- https://launchstudio.bluetooth.com/ListingDetails/76427Third Party Advisory
- https://www.actions-semi.com/index.php?id=3581&siteId=4Vendor Advisory
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdfBroken Link
- https://launchstudio.bluetooth.com/ListingDetails/76427Third Party Advisory
- https://www.actions-semi.com/index.php?id=3581&siteId=4Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.