Vulnerability in Kernel Package: tpm: efi: Use local variable for calculating final log size
Summary
UVI-2021-1000143: tpm: efi: Use local variable for calculating final log size. Affects Kernel versions >= 166a2809d65b282272c474835ec22c882a39ca1b, < 60a01ecc9f68067e4314a0b55148e39e5d58a51b. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system that provides core functionalities and interfaces with hardware devices. It acts as a bridge between the hardware and software layers, enabling the execution of various processes and managing system resources. The tpm: efi module within the Kernel package is responsible for handling Trusted Platform Module (TPM) operations in the EFI (Extensible Firmware Interface) environment. TPM is a hardware-based security feature that provides cryptographic functions and secure storage for sensitive data. This vulnerability specifically affects the calculation of the final log size in the tpm: efi module.
Vulnerability Detail
The vulnerability arises from the improper use of a global variable for calculating the final log size in the tpm: efi module. By utilizing a local variable instead, the calculation can be performed securely and accurately. The impact of this vulnerability is not yet proven, but it has the potential to lead to security breaches or system instability. The vulnerability was introduced in version v5.3 of the Linux Kernel and has been fixed in version v5.10.36.
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
In conclusion, the Kernel package's tpm: efi module is vulnerable to a flaw in the calculation of the final log size. This vulnerability can potentially result in security breaches or system instability. It is crucial to update the Kernel package to version v5.10.36 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel package is a critical component of the Linux operating system that provides core functionalities and interfaces with hardware devices.
The tpm: efi module is responsible for handling Trusted Platform Module (TPM) operations in the EFI (Extensible Firmware Interface) environment.
A Trusted Platform Module (TPM) is a hardware-based security feature that provides cryptographic functions and secure storage for sensitive data.
The impact of this vulnerability is not yet proven, but it has the potential to lead to security breaches or system instability.
To fix this vulnerability, it is recommended to update the Linux Kernel package to version v5.10.36 or later.
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