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Bug 1487588 - (CVE-2017-0900) CVE-2017-0900 rubygems: No size limit in summary length of gem spec
CVE-2017-0900 rubygems: No size limit in summary length of gem spec
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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: ---
Assigned To: Red Hat Product Security
impact=low,public=20170901,reported=2...
: Security
Depends On: 1487591 1487592 1487593 1502047 1509450 1509451 1534437 1534438 1534937 1534938 1534940 1534941
Blocks: 1487526 1487605
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Reported: 2017-09-01 06:54 EDT by Adam Mariš
Modified: 2018-03-26 06:22 EDT (History)
30 users (show)

See Also:
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.
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Clone Of:
Environment:
Last Closed: 2017-12-20 04:32:57 EST
Type: ---
Regression: ---
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Documentation: ---
CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:3485 normal SHIPPED_LIVE Moderate: rh-ruby24-ruby security, bug fix, and enhancement update 2017-12-19 08:37:01 EST
Red Hat Product Errata RHSA-2018:0378 normal SHIPPED_LIVE Important: ruby security update 2018-02-28 20:06:17 EST
Red Hat Product Errata RHSA-2018:0583 None None None 2018-03-26 05:44 EDT
Red Hat Product Errata RHSA-2018:0585 None None None 2018-03-26 06:22 EDT

  None (edit)
Description Adam Mariš 2017-09-01 06:54:59 EDT 
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 07:02:27 EDT 
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 03:37:55 EST 
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 04:32:24 EST 
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 15:01:52 EST 
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 05:43:56 EDT 
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 06:22:07 EDT 
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
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