CVE-2015-9096

Publication date 12 June 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Net::SMTP in Ruby before 2.4.0 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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby1.9.1	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed 1.9.3.484-2ubuntu1.3
ruby2.0	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed 2.0.0.484-1ubuntu2.4
ruby2.3	17.04 zesty	Fixed 2.3.3-1ubuntu0.1
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 2.3.1-2~16.04.2
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ruby2.3	Upstream: 0827a7e

Severity score breakdown

Parameter	Value
Base score	6.1 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-3365-1
Ruby vulnerabilities
25 July 2017