UAF Vulnerability in Kernel Package
Summary
GSD-2021-1001918: can: peak_pci: peak_pci_remove(): fix UAF. Affects Kernel versions >= e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd, < 1c616528ba4aeb1125a06b407572ab7b56acae38. 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 identified 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 Kernel package by commit e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd and is fixed in version v4.4.290 by commit 1c616528ba4aeb1125a06b407572ab7b56acae38. The vulnerability could potentially be exploited to execute arbitrary code or cause a denial-of-service (DoS) attack.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can apply patches provided by the Linux Kernel community to mitigate the UAF vulnerability. The patches can be found in the official Linux Kernel repository. It is important to carefully review and test the patches before applying them to ensure compatibility and stability.
Conclusion
The UAF vulnerability in the Kernel package poses a potential security risk, allowing attackers to execute arbitrary code or cause a DoS attack. It is crucial to update to version v4.4.290 or later to fix this vulnerability. Applying the provided patches as a temporary measure can also help mitigate the risk. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The UAF vulnerability in the Kernel package can potentially allow an attacker to execute arbitrary code or cause a denial-of-service (DoS) attack.
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 analyze it in real-time.
At the time of this report, no known exploits for this UAF vulnerability in the Kernel package have been reported. However, it is important to apply the recommended fixes to mitigate any potential risks.
Applying the provided patches from the Linux Kernel community can serve as a temporary measure to mitigate the UAF vulnerability until you can update to the latest version of the Kernel package.
For more detailed information about this UAF vulnerability in the Kernel package, you can refer to the source link provided in the database-specific section of this report.
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