What is CVE-2023-40090?

CVE-2023-40090 is a vulnerability in the BTM_BleVerifySignature function of btm_ble.cc in Google Android, which allows bypassing of signature validation.

How can CVE-2023-40090 be exploited?

CVE-2023-40090 can be exploited by leveraging a side channel information disclosure to bypass signature validation, leading to remote escalation of privilege.

What is the severity of CVE-2023-40090?

CVE-2023-40090 has a severity level of high.

Is user interaction required for the exploitation of CVE-2023-40090?

No, user interaction is not needed for the exploitation of CVE-2023-40090.

How can CVE-2023-40090 be fixed?

To fix CVE-2023-40090, it is recommended to apply the necessary security updates provided by Google for Android.

Vulnerability/
CVE-2023-40090

medium

6.5

CWE

203

4/12/2023

26/8/2024

CVE-2023-40090

First published: Mon Dec 04 2023(Updated: )

In BTM_BleVerifySignature of btm_ble.cc, there is a possible way to bypass signature validation due to side channel information disclosure. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Credit: security@android.com

Affected Software	Affected Version	How to fix
Google Android
Google Android	=11.0
Google Android	=12.0
Google Android	=12.1
Google Android	=13.0
Google Android	=14.0

Remedy

https://android.googlesource.com/platform/packages/modules/Bluetooth/+/495417bd068c35de0729d9a332639bd0699153ff

Remedy

https://source.android.com/security/bulletin/2023-12-01

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Reference Links

Frequently Asked Questions

What is CVE-2023-40090?
CVE-2023-40090 is a vulnerability in the BTM_BleVerifySignature function of btm_ble.cc in Google Android, which allows bypassing of signature validation.
How can CVE-2023-40090 be exploited?
CVE-2023-40090 can be exploited by leveraging a side channel information disclosure to bypass signature validation, leading to remote escalation of privilege.
What is the severity of CVE-2023-40090?
CVE-2023-40090 has a severity level of high.
Is user interaction required for the exploitation of CVE-2023-40090?
No, user interaction is not needed for the exploitation of CVE-2023-40090.
How can CVE-2023-40090 be fixed?
To fix CVE-2023-40090, it is recommended to apply the necessary security updates provided by Google for Android.

agent/type
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source/NVD
agent/software-canonical-lookup
agent/software-canonical-lookup-request
collector/android-source
source/Android
agent/last-modified-date
collector/mitre-cve
source/MITRE
vendor/google
canonical/google android
version/google android/11.0
version/google android/12.0
version/google android/12.1
version/google android/13.0
version/google android/14.0

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