Directory traversal vulnerability in lib/mail/network/delivery_methods/file_delivery.rb in the Mail gem before 2.4.4 for Ruby allows remote attackers to read arbitrary files via a .. (dot dot) in the to parameter.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-2139
• mikel/mail@29aca25
• https://bugzilla.novell.com/show_bug.cgi?id=759092
• https://bugzilla.redhat.com/show_bug.cgi?id=816352
• http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080645.html
• http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080648.html
• http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080747.html
• http://www.openwall.com/lists/oss-security/2012/04/25/8
• http://www.openwall.com/lists/oss-security/2012/04/26/1