UAF Vulnerability in Kernel package
Summary
GSD-2021-1001979: can: peak_pci: peak_pci_remove(): fix UAF. Affects Kernel versions >= e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd, < adbda14730aacce41c0d3596415aa39ad63eafd9. No fix is published. How to fix ↓
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Background
The Kernel package is a crucial component of the Linux operating system. It provides the core functionality and acts as an interface between the hardware and software layers. The package includes various drivers and modules that enable communication with hardware devices. However, a vulnerability has been discovered in the Kernel package that could lead to a Use-After-Free (UAF) issue.
Vulnerability Detail
The UAF vulnerability in the Kernel package, specifically in the 'peak_pci_remove()' function of the 'peak_pci' module, allows an attacker to exploit a use-after-free condition. This vulnerability was introduced in version v3.4 of the Linux Kernel and was fixed in version v4.19.214. An attacker could potentially trigger the use-after-free condition, leading to a crash or potential code execution. 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 UAF vulnerability in the Kernel package, specifically in the 'peak_pci_remove()' function, poses a potential risk to the stability and security of the Linux operating system. It is crucial to update the Kernel package to version v4.19.214 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 functionality and acts as an interface between hardware and software layers.
A Use-After-Free (UAF) vulnerability occurs when a program uses a memory object after it has been freed, leading to potential crashes or code execution.
An attacker can exploit this vulnerability by triggering the use-after-free condition in the 'peak_pci_remove()' function of the 'peak_pci' module, potentially leading to a crash or code execution.
The vulnerability was introduced in version v3.4 of the Linux Kernel and was fixed in version v4.19.214.
No, the impact and attack plausibility of this vulnerability have not been proven yet.
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