The open-source community is pushing customers to patch their systems to close a hole in a software component that allows Windows programs to store and retrieve files on Linux and Unix servers. . .

The open-source community is pushing customers to patch their systems to close a hole in a software component that allows Windows programs to store and retrieve files on Linux and Unix servers.

Known as Samba, the popular software can be found on many workstations and servers running any one of the variety of flavors of Linux and Unix, including systems running Apple OS X. Members of the Samba team planned to announce the vulnerability on Tuesday, but they released information over the weekend because some believed a Web site break-in in Germany may have been attributed to the software.

"We know of one site that may have been compromised by this," said Jeremy Allison, co-author of Samba. "That's what precipitated the release."

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