medium
6.5
Advisory Published
Updated

CVE-2022-20021

First published: Tue Jan 04 2022(Updated: )

In Bluetooth, there is a possible application crash due to bluetooth does not properly handle the reception of multiple LMP_host_connection_req. This could lead to remote denial of service of bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06198513; Issue ID: ALPS06198513.

Credit: security@mediatek.com security@mediatek.com

Affected SoftwareAffected VersionHow to fix
Google Android=10.0
Google Android=11.0
MediaTek AWUS036NH
Mediatek Mt6580
Mediatek Mt6630
Mediatek Mt6735
Mediatek Mt6737
Mediatek Mt6739
Mediatek Mt6750s
Mediatek Mt6753
Mediatek Mt6755s
Mediatek Mt6757
Mediatek Mt6757c
Mediatek Mt6757cd
Mediatek Mt6757ch
Mediatek Mt6763
Mediatek Mt6771
Mediatek Mt7662t
Mediatek Mt7663
Mediatek Mt7668
Mediatek Mt8163
Mediatek Mt8167
Mediatek Mt8167s
Mediatek Mt8173
Mediatek Mt8183
Mediatek Mt8321
Mediatek Mt8362a
Mediatek Mt8362b
Mediatek Mt8385
Mediatek Mt8765
Mediatek Mt8788
All of
Any of
Google Android=10.0
Google Android=11.0
Any of
MediaTek AWUS036NH
Mediatek Mt6580
Mediatek Mt6630
Mediatek Mt6735
Mediatek Mt6737
Mediatek Mt6739
Mediatek Mt6750s
Mediatek Mt6753
Mediatek Mt6755s
Mediatek Mt6757
Mediatek Mt6757c
Mediatek Mt6757cd
Mediatek Mt6757ch
Mediatek Mt6763
Mediatek Mt6771
Mediatek Mt7662t
Mediatek Mt7663
Mediatek Mt7668
Mediatek Mt8163
Mediatek Mt8167
Mediatek Mt8167s
Mediatek Mt8173
Mediatek Mt8183
Mediatek Mt8321
Mediatek Mt8362a
Mediatek Mt8362b
Mediatek Mt8385
Mediatek Mt8765
Mediatek Mt8788

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Reference Links

Frequently Asked Questions

  • What is CVE-2022-20021?

    CVE-2022-20021 is a vulnerability in Bluetooth that could lead to a remote denial of service attack.

  • How does CVE-2022-20021 affect Android devices?

    CVE-2022-20021 affects Android devices running version 10.0 and 11.0.

  • Is user interaction required to exploit CVE-2022-20021?

    No, user interaction is not needed for exploitation of CVE-2022-20021.

  • What is the severity of CVE-2022-20021?

    CVE-2022-20021 has a severity rating of 6.5, which is considered medium.

  • How can I fix CVE-2022-20021 on my Android device?

    To fix CVE-2022-20021 on your Android device, you should apply the latest security patches provided by your device manufacturer.

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