medium
6.5
Advisory Published
Updated

CVE-2021-1956

First published: Thu Sep 09 2021(Updated: )

Improper handling of ASB-U packet with L2CAP channel ID by slave host can lead to interference with piconet in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Credit: product-security@qualcomm.com

Affected SoftwareAffected VersionHow to fix
Qualcomm AQT1000 Firmware
Qualcomm AQT1000 Firmware
Qualcomm AR8035 Firmware
Qualcomm AR8035 Firmware
Qualcomm CSRB31024 Firmware
Qualcomm CSRB31024 Firmware
Qualcomm QCA6175A Firmware
Qualcomm QCA6175A Firmware
Qualcomm QCA6390 Firmware
Qualcomm QCA6390 Firmware
Qualcomm QCA6391 Firmware
Qualcomm QCA6391 Firmware
Qualcomm QCA6420 Firmware
Qualcomm QCA6420 Firmware
Qualcomm QCA6430 firmware
Qualcomm QCA6430 firmware
Qualcomm QCA6564A
Qualcomm QCA6564A Firmware
Qualcomm QCA6564AU Firmware
Qualcomm QCA6564A
Qualcomm QCA6574 Firmware
Qualcomm QCA6574 Firmware
Qualcomm QCA6574A Firmware
qualcomm qca6574a firmware
Qualcomm QCA6574 Firmware
Qualcomm QCA6574AU
Qualcomm QCA6584AU Firmware
Qualcomm QCA6584AU firmware
Qualcomm QCA6595AU Firmware
Qualcomm QCA6595AU Firmware
Qualcomm QCA6595AU Firmware
Qualcomm QCA6595AU Firmware
Qualcomm QCA6696 Firmware
Qualcomm QCA6696 Firmware
Qualcomm QCA8337 Firmware
Qualcomm QCA8337 Firmware
Qualcomm QCN7605 Firmware
Qualcomm QCN7605 Firmware
Qualcomm QCN7606 Firmware
Qualcomm QCN7606W Firmware
Qualcomm 315 5G Firmware
Qualcomm QCX315 Firmware
Qualcomm SA415M Firmware
Qualcomm SA415M Firmware
Qualcomm SA515M Firmware
Qualcomm SA515M Firmware
Qualcomm SA6145P Firmware
Qualcomm SA6145P Firmware
Qualcomm SA6150P Firmware
Qualcomm SA6150P Firmware
Qualcomm SA6155
Qualcomm SA6155 Firmware
Qualcomm SA6155
Qualcomm SA6155P
Qualcomm SA8145P
Qualcomm SA8145P Firmware
Qualcomm SA8150P Firmware
Qualcomm SA8150P Firmware
Qualcomm SA8155P Firmware
Qualcomm SA8155 Firmware
Qualcomm SA8155
Qualcomm SA8155P Firmware
Qualcomm SA8195P
Qualcomm SA8195P Firmware
qualcomm sc8180x+sdx55 Firmware
Qualcomm SC8180X+SDX55
Qualcomm SD 8C Firmware
Qualcomm Snapdragon 8c
Qualcomm SD 8cx firmware
Qualcomm Snapdragon 8cx
Qualcomm SDX55M Firmware
Qualcomm SDX55 Firmware
Qualcomm WCD9340 Firmware
Qualcomm WCD9340 Firmware
Qualcomm WCD9341
Qualcomm WCD9341 Firmware
Qualcomm WCD9360 Firmware
Qualcomm WCD9360 Firmware
Qualcomm WCN3998 Firmware
Qualcomm wcn3998 firmware
Qualcomm WSA8810
Qualcomm WSA8810 Firmware
Qualcomm WSA8815 Firmware
Qualcomm WSA8815 Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-1956?

    The severity of CVE-2021-1956 is classified as high due to its potential impact on the piconet functionality.

  • How do I fix CVE-2021-1956?

    To address CVE-2021-1956, apply the security patches provided by Qualcomm for the affected firmware.

  • What devices are affected by CVE-2021-1956?

    Devices using Qualcomm Snapdragon products in various categories including automotive, compute, and consumer electronics are affected by CVE-2021-1956.

  • What types of attacks can CVE-2021-1956 facilitate?

    CVE-2021-1956 can facilitate denial-of-service attacks that disrupt communication within a Bluetooth piconet.

  • Is CVE-2021-1956 actively exploited?

    As of now, there have been no confirmed reports of active exploitation of CVE-2021-1956 in the wild.

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