Bug 1487588 (CVE-2017-0900)

Summary: CVE-2017-0900 rubygems: No size limit in summary length of gem spec
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: bcourt, bhu, bkearney, cbillett, ccoleman, dedgar, dmcphers, esammons, hhorak, iboverma, jgoulding, jmatthew, jorton, jross, kseifried, mastahnke, matt, mcressma, mmccune, mrike, mtasaka, ohadlevy, ruby-maint, s, tjay, tomckay, tsanders, vanmeeuwen+fedora, vondruch, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: rubygems 2.6.13, ruby 2.4.2, ruby 2.2.8, ruby 2.3.5 Doc Type: If docs needed, set a value
Doc Text:
It was found that rubygems could use an excessive amount of CPU while parsing a sufficiently long gem summary. A specially crafted gem from a gem repository could freeze gem commands attempting to parse its summary.
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-12-20 09:32:57 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: 1487591, 1487592, 1487593, 1502047, 1509450, 1509451, 1534437, 1534438, 1534937, 1534938, 1534940, 1534941    
Bug Blocks: 1487526, 1487605    

Description Adam Mariš 2017-09-01 10:54:59 UTC
RubyGems version 2.6.12 and earlier is vulnerable to maliciously
crafted gem specifications to cause a denial of service attack against
RubyGems clients who have issued a `query` command.

Upstream patch:

https://github.com/rubygems/rubygems/commit/8a38a4fc24c6591e6c8f43d1fadab6efeb4d6251

Bug report:

https://hackerone.com/reports/243003

External References:

http://blog.rubygems.org/2017/08/27/2.6.13-released.html

Comment 1 Adam Mariš 2017-09-01 11:02:27 UTC
Created ruby193-rubygems tracking bugs for this issue:

Affects: openshift-1 [bug 1487592]


Created rubygems tracking bugs for this issue:

Affects: fedora-all [bug 1487591]
Affects: openshift-1 [bug 1487593]

Comment 5 errata-xmlrpc 2017-12-19 08:37:55 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 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS

Via RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2017:3485

Comment 6 Cedric Buissart 2017-12-20 09:32:24 UTC
Statement:

This issue affects the versions of ruby as shipped with Red Hat Enterprise Linux 6, and 7 and the versions of rh-ruby22-ruby and rh-ruby23-ruby as shipped with Red Hat Software Collections. Red Hat Product Security has rated this issue as having Low security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 8 errata-xmlrpc 2018-02-28 20:01:52 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0378

Comment 11 errata-xmlrpc 2018-03-26 09:43:56 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 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS

Via RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0583

Comment 12 errata-xmlrpc 2018-03-26 10:22:07 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 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS

Via RHSA-2018:0585 https://access.redhat.com/errata/RHSA-2018:0585