CVE-2021-31611

The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing attackers in radio range to deadlock a device via a crafted LMP packet. The user needs to manually reboot the device to restore communication.

CVSS v3.0 5.7 MEDIUM
CVSS v2.0 3.3 LOW

5.7^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

3.3^/10

CVSS v2.0 : LOW

Vector : AV:A/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 6.5 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
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	Broken Link
http://www.zh-jieli.com/product/68-cn.html	Vendor Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:zh-jieli:ac6901_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:zh-jieli:ac6901:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:zh-jieli:ac6925_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:zh-jieli:ac6925:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:zh-jieli:ac6926_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:zh-jieli:ac6926:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:zh-jieli:ac6928_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:zh-jieli:ac6928:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:o:zh-jieli:ac6921_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:zh-jieli:ac6921:-:*:*:*:*:*:*:*

Information

Published : 2021-09-07 00:15

Updated : 2022-05-03 09:04

NVD link : CVE-2021-31611

Mitre link : CVE-2021-31611

JSON object : View

CWE

CWE-667

Improper Locking

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Products Affected

zh-jieli

ac6926
ac6901_firmware
ac6928
ac6921_firmware
ac6925
ac6925_firmware
ac6928_firmware
ac6926_firmware
ac6921
ac6901

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