Memory Overrun and Leak Vulnerability in Linux Kernel - CVE-2022-49231
Summary
CVE-2022-49231: In the Linux kernel, the following vulnerability has been resolved: rtw88: fix memory overrun and memory leak during hw_scan Previously we allocated less memory than actual required, overwrite to the buffer causes the mm... Affects linux versions < 5.17.3-1. Fixed in 5.17.3-1. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, providing essential services for hardware and software interactions. It is known for its robustness, flexibility, and extensive support for various hardware architectures. However, like any complex software, it is susceptible to vulnerabilities that can compromise system integrity and security.
Vulnerability Detail
CVE-2022-49231 is a vulnerability in the Linux kernel related to the rtw88 driver. It arises from insufficient memory allocation during hardware scanning processes, leading to potential memory overruns and leaks. This flaw can cause access violation faults, which may disrupt system operations and lead to data corruption or crashes. The vulnerability stems from incorrect buffer size allocation and improper deinitialization flows, making it critical for users to address it promptly.
How To Fix
Minimum fixed version
5.17.3-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the patch as soon as it is available.
Conclusion
CVE-2022-49231 represents a significant vulnerability in the Linux kernel that can lead to serious system issues if left unaddressed. Users are strongly encouraged to update their systems to the patched version to ensure security and stability.
See every vulnerability recorded for linux →
FAQ
CVE-2022-49231 is a vulnerability in the Linux kernel that can lead to memory overruns and leaks during hardware scans.
It can cause access violation faults, potentially leading to system crashes, data corruption, or instability.
You should update your Linux kernel to version 5.17.3-1 or later to mitigate the vulnerability.
Yes, you can use Vulert, which monitors open-source vulnerabilities in your software using a manifest file like package-lock.json.
You can use the Vulert playground at Vulert Scanner to check for vulnerabilities without needing to sign up.
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