Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2017-17790

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Published: Dec 20, 2017 | Modified: Apr 20, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8.1 LOW
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
root.io logo minimus.io logo echo.ai logo
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2017-17790
CWEhttps://cwe.mitre.org/data/definitions/74.html

The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a | character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.

Weakness

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Affected Software

NameVendorStart VersionEnd Version
RubyRuby-lang2.2 (including)2.2.8 (including)
RubyRuby-lang2.3 (including)2.3.5 (including)
RubyRuby-lang2.4 (including)2.4.2 (including)
RubyRuby-lang2.5.0-preview1 (including)2.5.0-preview1 (including)
Red Hat Enterprise Linux 7RedHatruby-0:2.0.0.648-33.el7_4*
Red Hat Software Collections for Red Hat Enterprise Linux 6RedHatrh-ruby22-ruby-0:2.2.9-19.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 6RedHatrh-ruby24-ruby-0:2.4.3-90.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 6RedHatrh-ruby23-ruby-0:2.3.6-67.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSRedHatrh-ruby22-ruby-0:2.2.9-19.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSRedHatrh-ruby24-ruby-0:2.4.3-90.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSRedHatrh-ruby23-ruby-0:2.3.6-67.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHatrh-ruby22-ruby-0:2.2.9-19.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHatrh-ruby24-ruby-0:2.4.3-90.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHatrh-ruby23-ruby-0:2.3.6-67.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSRedHatrh-ruby22-ruby-0:2.2.9-19.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSRedHatrh-ruby24-ruby-0:2.4.3-90.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSRedHatrh-ruby23-ruby-0:2.3.6-67.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHatrh-ruby22-ruby-0:2.2.9-19.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHatrh-ruby24-ruby-0:2.4.3-90.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHatrh-ruby23-ruby-0:2.3.6-67.el7*
Ruby1.9.1Ubuntutrusty*
Ruby2.3Ubuntuartful*
Ruby2.3Ubuntuesm-infra/xenial*
Ruby2.3Ubuntuxenial*
Ruby2.3Ubuntuzesty*
Ruby2.5Ubuntubionic*
Ruby2.5Ubuntudevel*
Ruby2.5Ubuntuesm-infra/bionic*

Potential Mitigations

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2026 Aqua Security Software Ltd.   Privacy Policy | Terms of Use