Critical severity9.8NVD Advisory· Published Dec 20, 2017· Updated Jun 17, 2026
CVE-2017-17790
CVE-2017-17790
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
24- osv-coords21 versionspkg:rpm/suse/ruby2.1&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/ruby2.1&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/ruby2.1&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/ruby2.1&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/ruby2.1&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/ruby2.1&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/yast2-ruby-bindings&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/yast2-ruby-bindings&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/yast2-ruby-bindings&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/yast2-ruby-bindings&distro=SUSE%20OpenStack%20Cloud%207
< 2.1.9-19.3.2+ 20 more
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 2.1.9-19.3.2
- (no CPE)range: < 3.1.53-9.8.1
- (no CPE)range: < 3.1.53-9.8.1
- (no CPE)range: < 3.1.53-9.8.1
- (no CPE)range: < 3.1.53-9.8.1
Patches
Vulnerability mechanics
References
9- github.com/ruby/ruby/pull/1777nvdExploitIssue TrackingThird Party Advisory
- access.redhat.com/errata/RHSA-2018:0378nvd
- access.redhat.com/errata/RHSA-2018:0583nvd
- access.redhat.com/errata/RHSA-2018:0584nvd
- access.redhat.com/errata/RHSA-2018:0585nvd
- lists.debian.org/debian-lts-announce/2017/12/msg00024.htmlnvd
- lists.debian.org/debian-lts-announce/2017/12/msg00025.htmlnvd
- lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlnvd
- www.debian.org/security/2018/dsa-4259nvd
News mentions
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