CVE-2018-1000076

Impact:
Moderate
Public Date:
2018-02-15
CWE:
CWE-347
Bugzilla:
1547421: CVE-2018-1000076 rubygems: Improper verification of signatures in tarball allows to install mis-signed gem

The MITRE CVE dictionary describes this issue as:

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Improper Verification of Cryptographic Signature vulnerability in package.rb that can result in a mis-signed gem could be installed, as the tarball would contain multiple gem signatures.. This vulnerability appears to have been fixed in 2.7.6.

Find out more about CVE-2018-1000076 from the MITRE CVE dictionary dictionary and NIST NVD.

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/.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 5.5
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity Impact High
Availability Impact None

Affected Packages State

Platform Package State
Red Hat Subscription Asset Manager 1 ruby193-rubygems Will not fix
Red Hat Software Collections for Red Hat Enterprise Linux rh-ruby23-ruby Affected
Red Hat Software Collections for Red Hat Enterprise Linux rh-ruby22-ruby Affected
Red Hat Software Collections for Red Hat Enterprise Linux rh-ruby24-ruby Affected
Red Hat Satellite 6 rubygems Will not fix
Red Hat Enterprise MRG 2 rubygems Will not fix
Red Hat Enterprise Linux 7 ruby Affected
Red Hat Enterprise Linux 6 rubygems Under investigation

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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