Vulnerability in mac80211_hwsim package: Uninitialized ieee80211_tx_info at hw_scan_work
Summary
GSD-2022-1000945: mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work. Affects Kernel versions < f2e57587aaf971aa80fd801152ccc33e8343aef3. No fix is published. How to fix ↓
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Background
The mac80211_hwsim package is a software simulator for the mac80211 wireless stack in the Linux kernel. It provides a virtual environment for testing and developing wireless drivers and applications. The package emulates virtual wireless devices and allows users to interact with them as if they were physical devices. The mac80211_hwsim package is widely used by developers and researchers in the field of wireless networking.
Vulnerability Detail
The vulnerability in the mac80211_hwsim package involves the uninitialized ieee80211_tx_info structure at the hw_scan_work function. This vulnerability can potentially lead to memory corruption or information disclosure. An attacker could exploit this vulnerability by sending specially crafted packets to a virtual wireless device created by the mac80211_hwsim package, causing the uninitialized structure to be used, resulting in unpredictable behavior or security issues. The impact of this vulnerability depends on the context in which the mac80211_hwsim package is used and the specific actions performed by the attacker.
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. The recommended solution is to apply the fix by updating the Linux kernel.
Conclusion
In conclusion, the mac80211_hwsim package is vulnerable to an uninitialized ieee80211_tx_info structure at the hw_scan_work function. This vulnerability can potentially lead to memory corruption or information disclosure. It is recommended to update the Linux kernel to version v4.9.305 or later to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The mac80211_hwsim package is a software simulator for the mac80211 wireless stack in the Linux kernel. It provides a virtual environment for testing and developing wireless drivers and applications.
The impact of this vulnerability depends on the context in which the mac80211_hwsim package is used and the specific actions performed by the attacker. It can potentially lead to memory corruption or information disclosure.
To fix this vulnerability, it is recommended to update the Linux kernel to version v4.9.305 or later. This fix is implemented in commit f2e57587aaf971aa80fd801152ccc33e8343aef3 of the Linux Kernel repository.
There is no specific workaround mentioned for this vulnerability. The recommended solution is to apply the fix by updating the Linux kernel.
For more information about this vulnerability, you can refer to the source link provided in the vulnerability details section of the Open Source Vulnerability format.
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