CVE-2015-9097
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.3% of scored records. A rank, not a probability.
- NVD base score
- 6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-06-12 20:00Z9 YR AGO
- Last updated
- 2024-09-17 03:28Z2 YR AGO
- Reserved
- 2017-06-12
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 976b5ac7ed9889fcbc5a38ffb5f9f1e5f0a7fc39935c8671988317e238223f8f
05 Affected products
06 References
- github.comhttps://github.com/mikel/mail/pull/1097
- hackerone.comhttps://hackerone.com/reports/137631
- github.comhttps://github.com/mikel/mail/commit/72befdc4dab3e6e288ce226a7da2aa474cf5be83
- openwall.comhttp://openwall.com/lists/oss-security/2015/12/11/3
- rubysec.comhttps://rubysec.com/advisories/mail-OSVDB-131677
- github.comhttps://github.com/rubysec/ruby-advisory-db/issues/215
- www.mbsd.jphttp://www.mbsd.jp/Whitepaper/smtpi.pdf
07 Fixed in
Debian 12
- ruby-mail Fixed in 2.6.1+dfsg1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- ruby-mail Fixed in 2.6.1+dfsg1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- ruby-mail Fixed in 2.6.1+dfsg1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.