CVE-2017-10784

Publication date 19 September 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby1.9.1	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed 1.9.3.484-2ubuntu1.5
ruby2.0	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed 2.0.0.484-1ubuntu2.10
ruby2.3	18.04 LTS bionic	Not in release
	17.10 artful	Fixed 2.3.3-1ubuntu1.2
	17.04 zesty	Ignored end of life
	16.04 LTS xenial	Fixed 2.3.1-2~16.04.5
	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: 6617c41

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.8 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	8.8 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-3439-1
Ruby vulnerabilities
5 October 2017

USN-3685-1
Ruby vulnerabilities
13 June 2018

USN-3528-1
Ruby vulnerabilities
10 January 2018