Bug 1692514 (CVE-2019-8321)

Summary:	CVE-2019-8321 rubygems: Escape sequence injection vulnerability in verbose
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dajohnso, dmetzger, gblomqui, gmccullo, gtanzill, hhorak, jfrey, jhardy, jorton, jprause, kdixon, lutter, mastahnke, mtasaka, obarenbo, roliveri, ruby-maint, simaishi, s, tkonishi, vanmeeuwen+fedora, vondruch
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:51:50 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1692530, 1695928, 1695930, 1695931, 1695932, 1695933, 1695934, 1699283, 1700313, 1700325, 1713063, 1843559
Bug Blocks:	1692529

Description Pedro Sampaio 2019-03-25 18:57:06 UTC

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::UserInteraction#verbose calls say without escaping, escape sequence injection is possible.

Upstream patch:

https://bugs.ruby-lang.org/attachments/7669

References:

https://www.ruby-lang.org/en/news/2019/03/05/multiple-vulnerabilities-in-rubygems/
https://blog.rubygems.org/2019/03/05/security-advisories-2019-03.html

Comment 1 Pedro Sampaio 2019-03-25 19:14:53 UTC

Created rubygems tracking bugs for this issue:

Affects: fedora-all [bug 1692530]

Comment 2 Scott Gayou 2019-04-03 21:56:19 UTC

Looks like the change in user_interaction.rb

```ruby
  def verbose(msg = nil)
    say(clean_text(msg || yield)) if Gem.configuration.really_verbose
  end
end
```

Comment 3 Scott Gayou 2019-04-03 22:03:13 UTC

I did not see the vulnerable pattern in Red Hat Enterprise 6 or 7 code.

Comment 8 errata-xmlrpc 2019-05-13 09:02:46 UTC

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS

Via RHSA-2019:1148 https://access.redhat.com/errata/RHSA-2019:1148

Comment 9 errata-xmlrpc 2019-05-13 09:18:53 UTC

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS

Via RHSA-2019:1150 https://access.redhat.com/errata/RHSA-2019:1150

Comment 12 errata-xmlrpc 2019-06-11 05:32:37 UTC

This issue has been addressed in the following products:

  CloudForms Management Engine 5.10

Via RHSA-2019:1429 https://access.redhat.com/errata/RHSA-2019:1429

Comment 14 errata-xmlrpc 2020-06-30 12:09:19 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.4 Advanced Update Support
  Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 7.4 Telco Extended Update Support

Via RHSA-2020:2769 https://access.redhat.com/errata/RHSA-2020:2769