UAF Vulnerability in Kernel package
Summary
UVI-2021-1001979: can: peak_pci: peak_pci_remove(): fix UAF. Affects Kernel versions >= e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd, < adbda14730aacce41c0d3596415aa39ad63eafd9. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software. It plays a crucial role in the functioning of the entire system. 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 arises from a flaw in the 'peak_pci_remove()' function of the 'peak_pci' module. This vulnerability allows an attacker to exploit a use-after-free condition, potentially leading to arbitrary code execution or a system crash. The vulnerability was introduced in version v3.4 of the Linux Kernel and has been fixed in version v4.19.214 by commit adbda14730aacce41c0d3596415aa39ad63eafd9.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround available for this vulnerability. It is essential to apply the fix by updating the Kernel package to the patched version.
Conclusion
The UAF vulnerability in the Kernel package poses a significant risk to the security and stability of Linux systems. It is crucial to update the Kernel package to the patched version to mitigate any potential exploitation. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The UAF vulnerability in the Kernel package can potentially allow an attacker to execute arbitrary code or crash the system, leading to a denial of service or unauthorized access.
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 to the playground, and it will provide real-time alerts for any open-source vulnerabilities, including this UAF vulnerability in the Kernel package.
At the time of this report, there is no known public exploit for this UAF vulnerability in the Kernel package. 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 accessible over a network. It is important to update the Kernel package to the patched version to prevent any potential remote exploitation.
The primary solution to fix this vulnerability is to update the Kernel package to the patched version. There are no alternative solutions or workarounds available.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
