Heads up - serious vulnerability in 'unzip'

[Spicer, Kevin]

Theres a problem with unzip.  Looks like it could be serious for anyone running MailScanner as root where the virus scanner uses external unzip (such as Clam). Patches are available.

(from http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0282 )

Directory traversal vulnerability in UnZip 5.50 allows attackers to overwrite arbitrary files via invalid characters between two . (dot) characters, which are filtered and result in a ".." sequence. 





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