Vulnerability in Kernel package: serial: liteuart: fix minor-number leak on probe errors
Summary
GSD-2021-1002582: serial: liteuart: fix minor-number leak on probe errors. Affects Kernel versions >= 1da81e5562fac8286567422cc56a7fbd0dc646d4, < 888fc81107cacd2a4f681bac7bb785cef868214f. No fix is published. How to fix ↓
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Background
The Kernel package is an essential component of the Linux operating system. It provides the core functionality and acts as an interface between the hardware and software layers. The serial: liteuart module within the Kernel package is responsible for handling serial communication. It allows devices to transmit and receive data in a sequential manner. However, a vulnerability has been identified in the module that can lead to a minor-number leak on probe errors.
Vulnerability Detail
The vulnerability in the serial: liteuart module occurs when a probe error is encountered. In such cases, a minor-number leak can occur, potentially leading to resource exhaustion or other unexpected behavior. This vulnerability was introduced in version v5.11 of the Linux Kernel and has been fixed in version v5.15.7. 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 vulnerability in the serial: liteuart module of the Kernel package can lead to a minor-number leak on probe errors. It is recommended to update the Linux Kernel package to version v5.15.7 or later to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, it could potentially lead to resource exhaustion or unexpected behavior in systems utilizing the affected version of the Kernel package.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the playground will provide real-time alerts for open-source vulnerabilities, including this one.
As of now, there is no known exploit for this vulnerability. However, it is always recommended to apply security patches and updates to mitigate potential risks.
It is not recommended to manually patch the vulnerability without updating the Kernel package. Updating to the fixed version ensures that all necessary changes and security enhancements are applied correctly.
You can refer to the vulnerability details in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/GSD-2021-1002582.json) for more information about this vulnerability.
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