CVE-2021-31610 Denial of service in n/a

Medium 6.5 Published Updated

Attackers in radio range can cause denial of service on AB32VG1 devices by flooding them 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-2021-31610?

CVE-2021-31610 is a medium-severity denial of service vulnerability in n/a, published on 7 Sep 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 AB32VG1 devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (either restart or deadlock the device) by flooding a device with LMP_AU_rand data.

Which versions are affected by CVE-2021-31610?

It affects 3 products.

Products include Bluetrum Ab5376t Firmware, Bluetrum Bt8896a Firmware, Mi Mi True Wireless Earbuds Basic 2 Firmware.

How do I fix CVE-2021-31610?

No fix has been published for CVE-2021-31610 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-2021-31610 being exploited?

There is no known exploitation of CVE-2021-31610 in the wild and no public exploit code.

Sources

Also known as GHSA-r5mj-p5rf-5r3g.

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