UAF Vulnerability in Kernel package
Summary
GSD-2021-1001790: can: peak_pci: peak_pci_remove(): fix UAF. Affects Kernel versions >= e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd, < 34914971bb3244db4ce2be44e9438a9b30c56250. 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 Kernel package handles various tasks, including device drivers, memory management, process scheduling, and system calls. This vulnerability affects the Kernel package and specifically impacts the 'peak_pci' module.
Vulnerability Detail
The UAF (Use-After-Free) vulnerability in the 'peak_pci' module of the Kernel package allows an attacker to exploit a use-after-free condition. This occurs when the module attempts to access memory that has already been freed. By manipulating this vulnerability, an attacker could potentially execute arbitrary code, escalate privileges, or cause a denial-of-service (DoS) condition. The vulnerability was introduced in version v3.4 of the Kernel package and has been fixed in version v4.14.253.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating the Kernel package to the patched version.
Conclusion
The UAF vulnerability in the 'peak_pci' module of the Kernel package poses a significant risk to the security and stability of affected systems. It is crucial to update the Kernel package to version v4.14.253 or later to mitigate this vulnerability. For further support and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The UAF vulnerability in the 'peak_pci' module of the Kernel package can potentially lead to arbitrary code execution, privilege escalation, or a denial-of-service (DoS) condition.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will provide real-time alerts for open-source vulnerabilities.
At the time of this report, there is no known public exploit for this vulnerability. However, it is crucial to apply the fix promptly to mitigate any potential risks.
Yes, this vulnerability can be exploited remotely if the affected system is exposed to network-based attacks. It is recommended to update the Kernel package to the patched version to prevent any potential remote exploitation.
No specific prerequisites are known for exploiting this vulnerability. However, an attacker would need to have the ability to execute arbitrary code on the target system to take advantage of the UAF vulnerability.
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