Prepare to patch a critical flaw in Windows and Samba file sharing in 3 weeks

Systems administrators should get ready to fix a critical vulnerability on April 12 that affects the Windows and Samba implementations of the Server Message Block (SMB) protocol.

The vulnerability was discovered by Stefan Metzmacher, a core developer of the Samba software, which is a popular open-source implementation of the SMB/CIFS (Server Message Block/Common Internet File System) networking protocol.

SMB/CIFS is implemented by default in Windows, where it’s used for network file and printer sharing. Linux and other Unix-like systems can interoperate and share resources with Windows systems over the same protocol using the Samba software.

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