Bug 1547419 (CVE-2018-1000074) - CVE-2018-1000074 rubygems: Unsafe Object Deserialization Vulnerability in gem owner allowing arbitrary code execution on specially crafted YAML
Summary: CVE-2018-1000074 rubygems: Unsafe Object Deserialization Vulnerability in gem...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-1000074
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1547431 1547432 1547433 1547437 1549913 1549914 1554493 1554494 1651601 1651611 1651616 1651627 1651801 1652039 1652040 1785384 1785385 1785386 1785387
Blocks: 1547429
TreeView+ depends on / blocked
 
Reported: 2018-02-21 10:28 UTC by Adam Mariš
Modified: 2021-02-17 00:47 UTC (History)
30 users (show)

Fixed In Version: rubygems 2.7.6
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2019-06-08 03:40:34 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3729 0 None None None 2018-11-29 09:55:38 UTC
Red Hat Product Errata RHSA-2018:3730 0 None None None 2018-11-29 10:09:34 UTC
Red Hat Product Errata RHSA-2018:3731 0 None None None 2018-11-29 10:21:46 UTC
Red Hat Product Errata RHSA-2019:2028 0 None None None 2019-08-06 12:03:40 UTC
Red Hat Product Errata RHSA-2020:0542 0 None None None 2020-02-18 14:43:19 UTC
Red Hat Product Errata RHSA-2020:0591 0 None None None 2020-02-25 12:10:13 UTC
Red Hat Product Errata RHSA-2020:0663 0 None None None 2020-03-03 15:17:30 UTC

Description Adam Mariš 2018-02-21 10:28:53 UTC 
Unsafe object deserialization vulnerability in owner command was found allowing arbitrary code execution when gem owner is run on specially crafted YAML file.

Upstream fix:

https://github.com/rubygems/rubygems/commit/254e3d0ee873c008c0b74e8b8abcbdab4caa0a6d

External References:

https://www.ruby-lang.org/en/news/2018/02/17/multiple-vulnerabilities-in-rubygems/
Comment 1 Adam Mariš 2018-02-21 10:38:15 UTC 
Created rubygems tracking bugs for this issue:

Affects: fedora-all [bug 1547431]
Comment 8 Andrej Nemec 2018-05-14 13:59:39 UTC 
Statement:

This issue affects the versions of rubygems as shipped with Red Hat Subscription Asset Manager 1.x. Red Hat Product Security has rated this issue as having security impact of Moderate. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

This issue affects the versions of rubygems as shipped with Red Hat Satellite version 6 on Red Hat Enterprise Linux version 5. Red Hat Product Security has rated this issue as having security impact of Moderate. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Comment 13 errata-xmlrpc 2018-11-29 09:55:25 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-2018:3729 https://access.redhat.com/errata/RHSA-2018:3729
Comment 14 errata-xmlrpc 2018-11-29 10:09:24 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-2018:3730 https://access.redhat.com/errata/RHSA-2018:3730
Comment 15 errata-xmlrpc 2018-11-29 10:21:33 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-2018:3731 https://access.redhat.com/errata/RHSA-2018:3731
Comment 16 Jun Aruga 2018-12-11 17:42:23 UTC 
The actual patch is

> External References:
> 
> https://www.ruby-lang.org/en/news/2018/02/17/multiple-vulnerabilities-in-rubygems/

for Ruby 2.2.9: https://bugs.ruby-lang.org/attachments/download/7030/rubygems-276-for-ruby22.patch
or ruby_2_2 branch: https://github.com/ruby/ruby/commit/664b94fd2b4b19edd7d75c6bbcd3154905b2624e

Note: This patch includes several security fixes.
Comment 17 errata-xmlrpc 2019-08-06 12:03:39 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2028 https://access.redhat.com/errata/RHSA-2019:2028
Comment 19 errata-xmlrpc 2020-02-18 14:43:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.5 Extended Update Support

Via RHSA-2020:0542 https://access.redhat.com/errata/RHSA-2020:0542
Comment 20 errata-xmlrpc 2020-02-25 12:10:09 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-2020:0591 https://access.redhat.com/errata/RHSA-2020:0591
Comment 21 errata-xmlrpc 2020-03-03 15:17:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.6 Extended Update Support

Via RHSA-2020:0663 https://access.redhat.com/errata/RHSA-2020:0663
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