Absolute path traversal vulnerability in curl 7.20.0 through 7.21.1, when the --remote-header-name or -J option is used, allows remote servers to create or overwrite arbitrary files by using \ (backslash) as a separator of path components within the Content-disposition HTTP header.
https://bugzilla.redhat.com/show_bug.cgi?id=642642
http://www.openwall.com/lists/oss-security/2010/10/13/5
http://www.openwall.com/lists/oss-security/2010/10/13/4
http://www.openwall.com/lists/oss-security/2010/10/13/1
http://securitytracker.com/id?1024583