CVE-2021-31613

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.

6.5

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.21%

Vendor Advisory zh-jieli.com

Affected: n/a n/a

References

Link	Tags
http://www.zh-jieli.com/product/68-cn.html	product vendor advisory
https://launchstudio.bluetooth.com/ListingDetails/58628	third party advisory
https://launchstudio.bluetooth.com/ListingDetails/19746	third party advisory
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf	third party advisory technical description

Frequently Asked Questions

What is the severity of CVE-2021-31613?: CVE-2021-31613 has been scored as a medium severity vulnerability.
How to fix CVE-2021-31613?: To fix CVE-2021-31613, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-31613 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-31613 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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