Bluetooth: SMP: Fail if remote and local public keys are identical
Summary
GSD-2021-1000521: Bluetooth: SMP: Fail if remote and local public keys are identical. Affects Kernel versions >= bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9, < 58cca5ec43be72a1af95f11966381e9953b0c9f5. No fix is published. How to fix ↓
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Background
The vulnerability affects the Kernel package in the Linux ecosystem. The Kernel is the core component of the operating system that manages system resources and provides an interface for software to interact with the hardware. It plays a crucial role in the functioning of the entire system. The vulnerability specifically impacts the Bluetooth Secure Simple Pairing (SMP) protocol, which is used for establishing secure connections between Bluetooth devices. The vulnerability arises when the remote and local public keys in the SMP protocol are identical.
Vulnerability Detail
The vulnerability in the Bluetooth SMP protocol occurs when the remote and local public keys are the same. This can lead to potential security risks as it undermines the security of the pairing process. Attackers may be able to exploit this vulnerability to gain unauthorized access to Bluetooth devices or intercept sensitive information exchanged during the pairing process. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability in the Bluetooth SMP protocol, where the remote and local public keys are identical, poses a potential security risk for Bluetooth devices. It is recommended to update the Kernel package to the fixed version to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but it has the potential to compromise the security of Bluetooth devices and the confidentiality of data exchanged during the pairing process.
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The Bluetooth Secure Simple Pairing (SMP) protocol is used for establishing secure connections between Bluetooth devices. It ensures that the devices can securely exchange encryption keys and authenticate each other.
The vulnerability was fixed in Linux Kernel version v5.12.7 by ensuring that the SMP protocol fails if the remote and local public keys are identical.
You can find more information about this vulnerability in the vulnerability database maintained by the Cloud Security Alliance. The specific vulnerability ID is GSD-2021-1000521.
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