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Mali GPU driver vulnerability affects many devices

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As part of Project Zero, Google security researchers investigate security vulnerabilities and report them to the companies responsible. This gives them time to fix the amended terms in 2021 before the discrepancies are made public. This is also the case with the latest vulnerability CVE-2022-33917. For this vulnerability, there is now an update for a large number of affected Android devices and Google recommends checking again to see if it has been installed. According to figures available from Google, only around 50% of the various zero-day patches are installed.

The vulnerability affects Android devices from Google itself, Samsung, Xiaomi, and Oppo, among others. Devices with an integrated Mali GPU are vulnerable. Mali GPU driver vulnerability allows write access to unprivileged users. Google explains this in detail at this point. A total of five issues discovered in June and July 2022 were reported to ARM. These had already been fixed in July and August 2022. At least one fixed source code for the drivers has been available since then. However, the fix did not bring the expected success and security researchers were still able to exploit the shortcomings. Now the gap is made public and except for unpatched devices the gap has been closed.

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