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MitreCVE-2021-34144

HistorySep 07, 2021 - 6:15 a.m.

CVE-2021-34144

2021-09-0706:15:07

mitre

web.nvd.nist.gov

cve-2021-34144

bluetooth classic

zhuhai jieli

vulnerability

nvd

security advisory

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

6.3

Confidence

High

EPSS

0.001

Percentile

31.1%

JSON

The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1 does not properly handle the reception of truncated LMP_SCO_Link_Request packets while no other BT connections are active, allowing attackers in radio range to prevent new BT connections (disabling the AB5301A inquiry and page scan procedures) via a crafted LMP packet. The user needs to manually perform a power cycle (restart) of the device to restore BT connectivity.

Affected configurations

Nvd

Node

zh-jieliac6936Match-

zh-jieliac6951Match-

zh-jieliac6952Match-

zh-jieliac6954Match-

zh-jieliac6955Match-

zh-jieliac6956Match-

zh-jieliac6963Match-

zh-jieliac6965Match-

zh-jieliac6966Match-

zh-jieliac6969Match-

zh-jieliac6973Match-

zh-jieliac6976Match-

zh-jieliac6983Match-

zh-jieliac6986Match-

AND

zh-jielifw-ac63_bt_sdkRange≤0.9.1

VendorProductVersionCPE
zh-jieliac6936-cpe:2.3:h:zh-jieli:ac6936:-:*:*:*:*:*:*:*
zh-jieliac6951-cpe:2.3:h:zh-jieli:ac6951:-:*:*:*:*:*:*:*
zh-jieliac6952-cpe:2.3:h:zh-jieli:ac6952:-:*:*:*:*:*:*:*
zh-jieliac6954-cpe:2.3:h:zh-jieli:ac6954:-:*:*:*:*:*:*:*
zh-jieliac6955-cpe:2.3:h:zh-jieli:ac6955:-:*:*:*:*:*:*:*
zh-jieliac6956-cpe:2.3:h:zh-jieli:ac6956:-:*:*:*:*:*:*:*
zh-jieliac6963-cpe:2.3:h:zh-jieli:ac6963:-:*:*:*:*:*:*:*
zh-jieliac6965-cpe:2.3:h:zh-jieli:ac6965:-:*:*:*:*:*:*:*
zh-jieliac6966-cpe:2.3:h:zh-jieli:ac6966:-:*:*:*:*:*:*:*
zh-jieliac6969-cpe:2.3:h:zh-jieli:ac6969:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
zh-jieli	ac6936	-	cpe:2.3:h:zh-jieli:ac6936:-:::::::*
zh-jieli	ac6951	-	cpe:2.3:h:zh-jieli:ac6951:-:::::::*
zh-jieli	ac6952	-	cpe:2.3:h:zh-jieli:ac6952:-:::::::*
zh-jieli	ac6954	-	cpe:2.3:h:zh-jieli:ac6954:-:::::::*
zh-jieli	ac6955	-	cpe:2.3:h:zh-jieli:ac6955:-:::::::*
zh-jieli	ac6956	-	cpe:2.3:h:zh-jieli:ac6956:-:::::::*
zh-jieli	ac6963	-	cpe:2.3:h:zh-jieli:ac6963:-:::::::*
zh-jieli	ac6965	-	cpe:2.3:h:zh-jieli:ac6965:-:::::::*
zh-jieli	ac6966	-	cpe:2.3:h:zh-jieli:ac6966:-:::::::*
zh-jieli	ac6969	-	cpe:2.3:h:zh-jieli:ac6969:-:::::::*

Rows per page:

1-10 of 151

References

dl.packetstormsecurity.net/papers/general/braktooth.pdf

github.com/Jieli-Tech/fw-AC63_BT_SDK

launchstudio.bluetooth.com/ListingDetails/91371

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

6.3

Confidence

High

EPSS

0.001

Percentile

31.1%

JSON

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