Vulnerability in net: qrtr: fix OOB Read in qrtr_endpoint_post
Summary
GSD-2021-1000921: net: qrtr: fix OOB Read in qrtr_endpoint_post. Affects Kernel versions >= 194ccc88297ae78d0803adad83c6dcc369787c9e, < 26b8d10703a9be45d6097946b2b4011f7dd2c56f. No fix is published. How to fix ↓
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Background
The affected package is the Linux Kernel. The Linux Kernel is the core component of the Linux operating system and provides essential functionality for the system. It manages system resources, facilitates communication between hardware and software components, and enables the execution of user programs. The vulnerability in question is related to the qrtr module within the kernel.
Vulnerability Detail
The vulnerability identified in the qrtr module of the Linux Kernel allows for an Out-of-Bounds Read (OOB Read) in the qrtr_endpoint_post function. This vulnerability was introduced in version v4.15 of the Linux Kernel by commit 194ccc88297ae78d0803adad83c6dcc369787c9e and affects all subsequent versions until v5.4.128, where it was fixed by commit 26b8d10703a9be45d6097946b2b4011f7dd2c56f. An attacker could potentially exploit this vulnerability to read sensitive information from kernel memory, leading to a variety of potential security risks.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can consider implementing additional security measures such as restricting access to the affected system, applying network-level protections, or employing intrusion detection systems to detect and mitigate potential attacks targeting this vulnerability. However, it is strongly recommended to apply the official fix by updating the Linux Kernel to the patched version.
Conclusion
In conclusion, the net: qrtr: fix OOB Read in qrtr_endpoint_post vulnerability in the Linux Kernel poses a risk of unauthorized access and data leaks. It is crucial to update the kernel to version v5.4.128 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
This vulnerability could allow an attacker to read sensitive information from kernel memory, potentially leading to unauthorized access, data leaks, or further exploitation of the system.
You can use tools like Vulert (https://vulert.com) to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
At the time of this report, there are no known public exploits specifically targeting this vulnerability. However, it is important to apply the recommended fix to mitigate any potential risks.
Yes, a patch for this vulnerability is available in the Linux Kernel version v5.4.128 and later. It is recommended to update the kernel to the patched version to address this vulnerability.
Yes, this vulnerability can be exploited remotely if the affected system is accessible over the network. It is crucial to apply the necessary updates to prevent potential remote exploitation.
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