CVE-2021-31613 Denial of service in n/a
Attackers in radio range can crash and restart Zhuhai Jieli Bluetooth devices by sending a crafted truncated LMP packet.
- 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-2021-31613?
CVE-2021-31613 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 Zhuhai Jieli AC690X and AC692X devices does not properly handle the reception of a truncated LMP packet during the LMP auto rate procedure, allowing attackers in radio range to immediately crash (and restart) a device via a crafted LMP packet.
Which versions are affected by CVE-2021-31613?
It affects 5 products.
Products include Zh-Jieli Ac6901 Firmware, Zh-Jieli Ac6921 Firmware, Zh-Jieli Ac6925 Firmware, Zh-Jieli Ac6926 Firmware, Zh-Jieli Ac6928 Firmware.
How do I fix CVE-2021-31613?
No fix has been published for CVE-2021-31613 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-2021-31613 being exploited?
There is no known exploitation of CVE-2021-31613 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-5ppj-p6hf-cfr4.