CVE-2015-9097

MEDIUM

mail < 2.5.5 - SMTP Command Injection via CRLF Sequences in RCPT TO or MAIL FROM

Title source: llm
STIX 2.1

Description

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.

References (7)

Core 7
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/mikel/mail/pull/1097
Issue Tracking, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/137631
Mailing List, Third Party Advisory x_refsource_misc
http://openwall.com/lists/oss-security/2015/12/11/3
Issue Tracking, Vendor Advisory x_refsource_misc
https://rubysec.com/advisories/mail-OSVDB-131677
Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/rubysec/ruby-advisory-db/issues/215
Third Party Advisory x_refsource_misc
http://www.mbsd.jp/Whitepaper/smtpi.pdf

Scores

CVSS v3 6.1
EPSS 0.0336
EPSS Percentile 87.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-93
Status published
Products (2)
mail_project/mail < 2.5.4
rubygems/mail 0 - 2.5.5RubyGems
Published Jun 12, 2017
Tracked Since Feb 18, 2026