Microsoft fixed the vulnerability of NTFS format disk denial of service causing system crash

In mid-January, we reported a vulnerability in Windows 10, which can be used to damage the contents of NTFS formatted drives. Only a specially made folder name is needed to cause the volume to be marked as dirty, and then the system needs to be repaired with the Chkdsk utility.

But Chkdsk does not always do this and instead prevents the victim from booting the system. A few months ago, Microsoft began testing the repair patch in the Windows Insiders community. Now the patch is being provided to all users. Microsoft has marked it as a solution to the problem tracked as CVE-2021-28312 (Windows NTFS Denial of Service Vulnerability).

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These fixes are listed as part of the patch released on Tuesday this month. The KB5001330 and KB5001337 updates that come together are mainly responsible for uninstalling the traditional version of Microsoft Edge in Windows 10. But these Windows 10 updates are, as always, a double-edged sword.

Unfortunately, although these updates solve the undeniably destructive NTFS problem, they also cause other problems for people, including slow performance and problems accessing shared folders. After installing the relevant updates for Windows 10, when trying to access the problematic path, the same message as during the testing of Insiders build 21322 appears, that is, “The directory name is invalid”.

More details about the vulnerability can be found in the Microsoft Security Response Center: Click Here

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