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A Memory Corrupting Bug in Microsoft Windows

Memory Corrupt
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Microsoft Windows contains a memory corruption bug in the handling of SMB traffic, which may allow a remote, unauthenticated attacker to cause a DOS attack on a vulnerable system.

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Microsoft Windows fails to properly handle a crafted EMF file that contains too many bytes following the structure defined in the SMB2 TREE_CONNECT Response structure. By connecting to a malicious SMB server, a vulnerable Windows client system may crash in. Ethical Hackers Club confirmed the crash with fully-patched Windows 10 and Windows 8.1 client systems, We found that there are a number of ways to trigger a Windows system to connect to an SMB share. Some may require little to no user interaction. While the exploit code for this vulnerability is publicly available.

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A remote attacker may cause a DOS attack by causing a Windows system to connect to a malicious SMB share.

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A Memory Corrupting Bug in Microsoft Windows

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