CVE-2022-42771: Android WLAN Driver Out-of-bounds Write Vulnerability
Summary
CVE-2022-42771: A wlan driver function lacks parameter checks, resulting Out-of-bounds Write issues. Affects :unknown: versions >= SoCVersion:0, < SoCVersion:2023-02-05. Fixed in SoCVersion:2023-02-05. How to fix ↓
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Background
The Android operating system is a widely used open-source platform that powers a variety of devices, including smartphones and tablets. It includes various drivers that facilitate communication between the hardware and software components. One such driver is the WLAN driver, which manages wireless network connections. This driver is crucial for enabling devices to connect to Wi-Fi networks, providing users with internet access and connectivity. However, vulnerabilities in such drivers can lead to severe security issues, including unauthorized access and system instability.
Vulnerability Detail
The vulnerability identified as CVE-2022-42771 arises from a lack of parameter checks in a function within the WLAN driver. This oversight can lead to out-of-bounds write issues, where the driver may write data outside the allocated memory space. Such behavior can result in memory corruption, potentially allowing an attacker to execute arbitrary code, escalate privileges, or crash the system. The severity of this vulnerability is classified as high, and it poses a significant risk to the integrity and security of affected devices.
How To Fix
Minimum fixed version
SoCVersion:2023-02-05
This is the first release that contains the fix.
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Workaround
Currently, there are no specific workarounds provided for this vulnerability. Users are advised to apply the patch as soon as it becomes available to mitigate the risk.
Conclusion
CVE-2022-42771 represents a significant security risk within the Android WLAN driver due to out-of-bounds write vulnerabilities. Users are strongly encouraged to update their devices to the latest patched version to protect against potential exploitation. Regular monitoring and updates are essential for maintaining device security.
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FAQ
CVE-2022-42771 is a vulnerability in the Android WLAN driver that allows for out-of-bounds write issues due to insufficient parameter checks.
The vulnerability can lead to memory corruption, allowing attackers to execute arbitrary code, escalate privileges, or crash the system.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Yes, a patch is available in the SoC version released on February 5, 2023. Users should update their devices to this version.
If you cannot update your device, it is recommended to limit the use of Wi-Fi connections and monitor for any unusual activity until a patch can be applied.
References
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