SMTP Command Injection Vulnerability in Mail Gem

CVE-2015-9097 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

The mail gem before 2.5.5 for Ruby (aka A Really Ruby Mail Library) is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.

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