CVE-2021-31787 Denial of service in n/a
Attackers in radio range can cause device shutdown by flooding Actions ATS2815 Bluetooth chipsets with unsolicited LMP responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-31787?
CVE-2021-31787 is a medium-severity denial of service vulnerability in n/a, published on 30 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-770
Which versions are affected by CVE-2021-31787?
It affects 5 products.
Products include Actions-Semi Ats2815 Firmware, Actions-Semi Ats2819 Firmware, Actions-Semi Ats2819p Firmware, Actions-Semi Ats2819s Firmware, Actions-Semi Ats2819t Firmware.
How do I fix CVE-2021-31787?
No fix has been published for CVE-2021-31787 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-31787 being exploited?
There is no known exploitation of CVE-2021-31787 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-r5g9-33j7-96vc.