Kernel Panic Vulnerability in Linux Packages: CVE-2023-52763
Summary
CVE-2023-52763: In the Linux kernel, the following vulnerability has been resolved: i3c: master: mipi-i3c-hci: Fix a kernel panic for accessing DAT_data. Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is the core component of the Linux operating system, responsible for managing system resources and facilitating communication between hardware and software. It supports a wide range of functionalities, including process management, memory management, and device control. The vulnerability CVE-2023-52763 affects various Debian versions of the Linux kernel, potentially leading to system instability and crashes due to improper handling of I3C bus initialization.
Vulnerability Detail
CVE-2023-52763 arises from a flaw in the i3c_master_bus_init function, which may attach I2C devices before the I3C bus is fully initialized. This can lead to the use of a NULL DAT_data, causing a kernel panic. If the initialization fails, the cleanup process may execute prematurely, leading to further instability as it attempts to free uninitialized memory. This vulnerability can result in significant system crashes and data loss if exploited.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the necessary updates as soon as they are available.
Conclusion
CVE-2023-52763 is a critical vulnerability in the Linux kernel that can lead to severe system instability. Users are strongly advised to update their systems to the latest kernel versions to mitigate the risks associated with this vulnerability. Monitoring tools like Vulert can assist in identifying vulnerabilities in your software.
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FAQ
CVE-2023-52763 is a vulnerability in the Linux kernel that can cause kernel panic due to improper initialization of the I3C bus.
The vulnerability affects Debian versions 11, 12, and 13 of the Linux kernel.
You can use tools like Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected.
Exploiting this vulnerability can lead to kernel panics, system crashes, and potential data loss.
Currently, there are no known workarounds. The recommended action is to update to the fixed kernel versions.
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