medium
6.7
CWE
416
Advisory Published
Updated

CVE-2021-35133: Use After Free

First published: Fri Sep 02 2022(Updated: )

Use after free in the synx driver issue while performing other functions during multiple invocation of synx release calls in Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

Credit: product-security@qualcomm.com

Affected SoftwareAffected VersionHow to fix
Qualcomm AR8035 Firmware
Qualcomm AR8035 Firmware
Qualcomm QCA6174A Firmware
Qualcomm QCA6174A Firmware
Qualcomm QCA6391 Firmware
Qualcomm QCA6391 Firmware
Qualcomm QCA8081 firmware
Qualcomm QCA8081 firmware
Qualcomm QCA8337 Firmware
Qualcomm QCA8337 Firmware
Qualcomm QCA9377 Firmware
Qualcomm QCA9377 Firmware
Qualcomm QCM6490
Qualcomm QCM6490 Firmware
Qualcomm QCS6490 Firmware
Qualcomm QCS6490 Firmware
Qualcomm Snapdragon 8 Gen 1 Firmware
Qualcomm SM8475P
Qualcomm SD 480 Firmware
Qualcomm Snapdragon 480
Qualcomm Snapdragon 780G Firmware
Qualcomm Snapdragon 780G
Qualcomm Snapdragon 888 5G Firmware
Qualcomm Snapdragon 888 5G
Qualcomm SD 12 Firmware
Qualcomm SDX12
Qualcomm SDX65
Qualcomm SDX65M
Qualcomm SM7450 Firmware
Qualcomm SM7450 Firmware
Qualcomm SM8475P Firmware
Qualcomm SM8475P
Qualcomm SM8475P Firmware
Qualcomm WCD9335 Firmware
Qualcomm WCD9335 Firmware
Qualcomm WCD9341
Qualcomm WCD9341 Firmware
Qualcomm WCD9370 Firmware
Qualcomm WCD9370 Firmware
Qualcomm WCD9375
Qualcomm WCD9375 Firmware
Qualcomm WCD9380
Qualcomm WCD9380 Firmware
Qualcomm WCD9385
Qualcomm WCD9385 Firmware
Qualcomm WCN3988 Firmware
Qualcomm WCN3988 Firmware
Qualcomm WCN3991 Firmware
Qualcomm WCN3991 Firmware
Qualcomm WCN6740 Firmware
Qualcomm WCN6740 Firmware
Qualcomm WCN6750 Firmware
Qualcomm WCN6750 Firmware
Qualcomm WCN6850 Firmware
Qualcomm WCN6850 Firmware
Qualcomm WCN6851 Firmware
Qualcomm WCN6851 Firmware
Qualcomm WCN6855 Firmware
Qualcomm WCN6855 Firmware
Qualcomm WCN6856 Firmware
Qualcomm WCN6856 Firmware
Qualcomm WCN7850 Firmware
Qualcomm WCN7850 Firmware
Qualcomm WCN7851
Qualcomm WCN7851 Firmware
Qualcomm WSA8830
Qualcomm WSA8830
Qualcomm WSA8832 Firmware
Qualcomm WSA8832 Firmware
Qualcomm WSA8835
Qualcomm WSA8835 Firmware

Remedy

https://www.qualcomm.com/company/product-security/bulletins/july-2022-bulletin

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-35133?

    CVE-2021-35133 is a vulnerability related to a use after free issue in the synx driver during multiple invocation of synx release calls in Qualcomm Snapdragon devices.

  • Which devices are affected by CVE-2021-35133?

    Qualcomm Snapdragon devices, including Snapdragon Connectivity, Snapdragon Industrial IOT, and Snapdragon Mobile, are affected by CVE-2021-35133.

  • What is the severity of CVE-2021-35133?

    CVE-2021-35133 has a severity value of 6.7, indicating a medium severity level.

  • How can I fix CVE-2021-35133?

    To fix CVE-2021-35133, it is recommended to apply the security patches or updates provided by Qualcomm as per their bulletin.

  • Where can I find more information about CVE-2021-35133?

    More information about CVE-2021-35133 can be found in the July 2022 bulletin on the Qualcomm Product Security website.

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