Use After Free Vulnerability in rtw88
Summary
GSD-2022-1001230: rtw88: fix use after free in rtw_hw_scan_update_probe_req(). Affects Kernel versions >= ec5da191bfcd5fd22b95459b623694f66c1cc10b, < d9fb80ad781e28b332df8c10b0511e9ca856e55d. 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 rtw88 package is a driver for Realtek wireless LAN devices. It is used in the Linux Kernel to provide support for these devices. The package handles various operations related to wireless communication, including scanning for available networks. However, a vulnerability has been discovered in the rtw_hw_scan_update_probe_req() function, which can lead to a use after free condition.
Vulnerability Detail
The use after free vulnerability in rtw_hw_scan_update_probe_req() occurs when the function tries to access memory that has already been freed. This can result in a crash or potentially allow an attacker to execute arbitrary code. The vulnerability was introduced in version v5.17.2 of the Linux Kernel and has been fixed in version v5.17.2 by commit d9fb80ad781e28b332df8c10b0511e9ca856e55d. It is important to note that the impact and attack plausibility of this vulnerability have not yet been proven.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.17.2 or later. This can be done by pulling the latest changes from the official Linux Kernel repository using the following command:
$ git pull https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
After updating the kernel, recompile and reinstall it on the affected system.
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 mentioned for this vulnerability.
Conclusion
In conclusion, the rtw88 package in the Linux Kernel is vulnerable to a use after free vulnerability in the rtw_hw_scan_update_probe_req() function. It is recommended to update the kernel to version v5.17.2 or later to fix this vulnerability. If you need further assistance or support in addressing this vulnerability, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability is not yet proven. However, it could potentially lead to a crash or allow an attacker to execute arbitrary code.
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 and Vulert will analyze it for any open-source vulnerabilities, including this one.
Yes, a patch has been released in version v5.17.2 of the Linux Kernel. It is recommended to update to this version or later to fix the vulnerability.
Updating the kernel is the recommended way to mitigate the risk. However, if updating is not feasible, you can consider implementing additional security measures, such as network segmentation and access controls, to reduce the attack surface.
You can find more information about this vulnerability in the GSD-2022-1001230.json file available in the GSD database on GitHub: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001230.json
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Follow Vulert in Google
Get more Vulert vulnerability and dependency-security updates in Google Search and AI results.