CVE-2017-0902

Impact:
Moderate
Public Date:
2017-08-31
CWE:
CWE-138
Bugzilla:
1487589: CVE-2017-0902 rubygems: DNS hijacking vulnerability
A vulnerability was found where rubygems did not sanitize DNS responses when requesting the hostname of the rubygems server for a domain, via a _rubygems._tcp DNS SRV query. An attacker with the ability to manipulate DNS responses could direct the gem command towards a different domain.

Find out more about CVE-2017-0902 from the MITRE CVE dictionary dictionary and NIST NVD.

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 Moderate 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/.

CVSS v3 metrics

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-ruby23-ruby) RHSA-2018:0585 2018-03-26
Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-ruby22-ruby) RHSA-2018:0583 2018-03-26
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-ruby22-ruby) RHSA-2018:0583 2018-03-26
Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-ruby24-ruby) RHSA-2017:3485 2017-12-19
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-ruby24-ruby) RHSA-2017:3485 2017-12-19
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-ruby23-ruby) RHSA-2018:0585 2018-03-26
Red Hat Enterprise Linux 7 (ruby) RHSA-2018:0378 2018-02-28

Affected Packages State

Platform Package State
Red Hat Subscription Asset Manager 1 ruby193-rubygems Will not fix
Red Hat Satellite 6 rubygems Will not fix
Red Hat Enterprise MRG 2 rubygems Will not fix
Red Hat Enterprise Linux 6 rubygems Will not fix

External References

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