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TI-2017-12987 Aliases CVE-2017-17742GHSA-7p4c-jf2w-hc3w

Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and…

Priority LOW 32CWE-113Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Partial Red Hat: 31 fixed, 4 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.

Why it matters now

EPSS 0.05453 92nd percentileScored 2026-11-07
Fix Partial Red Hat: 7 advisoriesRed Hat: 31 fixed, 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*2.2.0 to before 2.2.10; 2.3.0 to before 2.3.7; 2.4.0 to before 2.4.4; 2.5.0 to before 2.5.1Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:*2.6.0 preview1Vulnerableruby
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
  • cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* Versions 2.2.0 to before 2.2.10; 2.3.0 to before 2.3.7; 2.4.0 to before 2.4.4; 2.5.0 to before 2.5.1 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:* Versions 2.6.0 preview1 Vulnerable ·ruby
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian

Remediation

Red Hat 7 advisories

  • RHSA-2020:2288 Released 2020-05-26 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) ruby-2.0.0.648-37.el7_6, ruby-irb-2.0.0.648-37.el7_6, ruby-libs-2.0.0.648-37.el7_6 +6
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) ruby-devel-2.0.0.648-37.el7_6, ruby-doc-2.0.0.648-37.el7_6, ruby-tcltk-2.0.0.648-37.el7_6 +3
    • Red Hat Enterprise Linux Server EUS (v. 7.6) ruby-2.0.0.648-37.el7_6, ruby-irb-2.0.0.648-37.el7_6, ruby-libs-2.0.0.648-37.el7_6 +7
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) ruby-devel-2.0.0.648-37.el7_6, ruby-doc-2.0.0.648-37.el7_6, ruby-tcltk-2.0.0.648-37.el7_6 +3
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) ruby-2.0.0.648-37.el7_6, ruby-irb-2.0.0.648-37.el7_6, ruby-libs-2.0.0.648-37.el7_6 +6
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) ruby-devel-2.0.0.648-37.el7_6, ruby-doc-2.0.0.648-37.el7_6, ruby-tcltk-2.0.0.648-37.el7_6 +3
  • RHSA-2020:2212 Released 2020-05-19 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux Server AUS (v. 7.4) ruby-2.0.0.648-36.el7_4, ruby-irb-2.0.0.648-36.el7_4, ruby-libs-2.0.0.648-36.el7_4 +6
    • Red Hat Enterprise Linux Server E4S (v. 7.4) ruby-2.0.0.648-36.el7_4, ruby-irb-2.0.0.648-36.el7_4, ruby-libs-2.0.0.648-36.el7_4 +6
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) ruby-devel-2.0.0.648-36.el7_4, ruby-doc-2.0.0.648-36.el7_4, ruby-tcltk-2.0.0.648-36.el7_4 +3
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.4) ruby-devel-2.0.0.648-36.el7_4, ruby-doc-2.0.0.648-36.el7_4, ruby-tcltk-2.0.0.648-36.el7_4 +3
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.4) ruby-devel-2.0.0.648-36.el7_4, ruby-doc-2.0.0.648-36.el7_4, ruby-tcltk-2.0.0.648-36.el7_4 +3
    • Red Hat Enterprise Linux Server TUS (v. 7.4) ruby-2.0.0.648-36.el7_4, ruby-irb-2.0.0.648-36.el7_4, ruby-libs-2.0.0.648-36.el7_4 +6
  • RHSA-2020:1963 Released 2020-04-29 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) ruby-2.0.0.648-36.el7_5, ruby-irb-2.0.0.648-36.el7_5, ruby-libs-2.0.0.648-36.el7_5 +6
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) ruby-devel-2.0.0.648-36.el7_5, ruby-doc-2.0.0.648-36.el7_5, ruby-tcltk-2.0.0.648-36.el7_5 +3
    • Red Hat Enterprise Linux Server EUS (v. 7.5) ruby-2.0.0.648-36.el7_5, ruby-irb-2.0.0.648-36.el7_5, ruby-libs-2.0.0.648-36.el7_5 +7
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.5) ruby-devel-2.0.0.648-36.el7_5, ruby-doc-2.0.0.648-36.el7_5, ruby-tcltk-2.0.0.648-36.el7_5 +3
Show 4 more Red Hat advisories
  • RHSA-2019:2028 Released 2019-08-06 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux Client (v. 7) ruby-2.0.0.648-36.el7, ruby-irb-2.0.0.648-36.el7, ruby-libs-2.0.0.648-36.el7 +6
    • Red Hat Enterprise Linux Client Optional (v. 7) ruby-devel-2.0.0.648-36.el7, ruby-doc-2.0.0.648-36.el7, ruby-tcltk-2.0.0.648-36.el7 +3
    • Red Hat Enterprise Linux ComputeNode (v. 7) ruby-2.0.0.648-36.el7, ruby-irb-2.0.0.648-36.el7, ruby-libs-2.0.0.648-36.el7 +6
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) ruby-devel-2.0.0.648-36.el7, ruby-doc-2.0.0.648-36.el7, ruby-tcltk-2.0.0.648-36.el7 +3
    • Red Hat Enterprise Linux Server (v. 7) ruby-2.0.0.648-36.el7, ruby-irb-2.0.0.648-36.el7, ruby-libs-2.0.0.648-36.el7 +7
    • Red Hat Enterprise Linux Server Optional (v. 7) ruby-devel-2.0.0.648-36.el7, ruby-doc-2.0.0.648-36.el7, ruby-tcltk-2.0.0.648-36.el7 +3
    • Red Hat Enterprise Linux Workstation (v. 7) ruby-2.0.0.648-36.el7, ruby-irb-2.0.0.648-36.el7, ruby-libs-2.0.0.648-36.el7 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 7) ruby-devel-2.0.0.648-36.el7, ruby-doc-2.0.0.648-36.el7, ruby-tcltk-2.0.0.648-36.el7 +3
  • RHSA-2018:3731 Released 2018-11-29 · Red Hat rating Important
    rh-ruby25-ruby security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ruby25-ruby-2.5.3-6.el7, rh-ruby25-ruby-devel-2.5.3-6.el7, rh-ruby25-ruby-doc-2.5.3-6.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ruby25-ruby-2.5.3-6.el7, rh-ruby25-ruby-devel-2.5.3-6.el7, rh-ruby25-ruby-doc-2.5.3-6.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-ruby25-ruby-2.5.3-6.el7, rh-ruby25-ruby-devel-2.5.3-6.el7, rh-ruby25-ruby-doc-2.5.3-6.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-ruby25-ruby-2.5.3-6.el7, rh-ruby25-ruby-devel-2.5.3-6.el7, rh-ruby25-ruby-doc-2.5.3-6.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ruby25-ruby-2.5.3-6.el7, rh-ruby25-ruby-devel-2.5.3-6.el7, rh-ruby25-ruby-doc-2.5.3-6.el7 +17
  • RHSA-2018:3730 Released 2018-11-29 · Red Hat rating Important
    rh-ruby24-ruby security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-ruby24-ruby-2.4.5-91.el6, rh-ruby24-ruby-devel-2.4.5-91.el6, rh-ruby24-ruby-doc-2.4.5-91.el6 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ruby24-ruby-2.4.5-91.el7, rh-ruby24-ruby-devel-2.4.5-91.el7, rh-ruby24-ruby-doc-2.4.5-91.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ruby24-ruby-2.4.5-91.el7, rh-ruby24-ruby-devel-2.4.5-91.el7, rh-ruby24-ruby-doc-2.4.5-91.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-ruby24-ruby-2.4.5-91.el7, rh-ruby24-ruby-devel-2.4.5-91.el7, rh-ruby24-ruby-doc-2.4.5-91.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-ruby24-ruby-2.4.5-91.el7, rh-ruby24-ruby-devel-2.4.5-91.el7, rh-ruby24-ruby-doc-2.4.5-91.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-ruby24-ruby-2.4.5-91.el6, rh-ruby24-ruby-devel-2.4.5-91.el6, rh-ruby24-ruby-doc-2.4.5-91.el6 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ruby24-ruby-2.4.5-91.el7, rh-ruby24-ruby-devel-2.4.5-91.el7, rh-ruby24-ruby-doc-2.4.5-91.el7 +17
  • RHSA-2018:3729 Released 2018-11-29 · Red Hat rating Important
    rh-ruby23-ruby security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-ruby23-ruby-2.3.8-69.el6, rh-ruby23-ruby-devel-2.3.8-69.el6, rh-ruby23-ruby-doc-2.3.8-69.el6 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ruby23-ruby-2.3.8-69.el7, rh-ruby23-ruby-devel-2.3.8-69.el7, rh-ruby23-ruby-doc-2.3.8-69.el7 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ruby23-ruby-2.3.8-69.el7, rh-ruby23-ruby-devel-2.3.8-69.el7, rh-ruby23-ruby-doc-2.3.8-69.el7 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-ruby23-ruby-2.3.8-69.el7, rh-ruby23-ruby-devel-2.3.8-69.el7, rh-ruby23-ruby-doc-2.3.8-69.el7 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-ruby23-ruby-2.3.8-69.el7, rh-ruby23-ruby-devel-2.3.8-69.el7, rh-ruby23-ruby-doc-2.3.8-69.el7 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-ruby23-ruby-2.3.8-69.el6, rh-ruby23-ruby-devel-2.3.8-69.el6, rh-ruby23-ruby-doc-2.3.8-69.el6 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ruby23-ruby-2.3.8-69.el7, rh-ruby23-ruby-devel-2.3.8-69.el7, rh-ruby23-ruby-doc-2.3.8-69.el7 +16

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Subscription Asset ManagerAffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux ComputeNode EUS (v. 7.5)Fixed RHSA-2020:1963
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)Fixed RHSA-2020:2288
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5)Fixed RHSA-2020:1963
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6)Fixed RHSA-2020:2288
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux Server AUS (v. 7.4)Fixed RHSA-2020:2212
Red Hat Enterprise Linux Server E4S (v. 7.4)Fixed RHSA-2020:2212
Red Hat Enterprise Linux Server EUS (v. 7.5)Fixed RHSA-2020:1963
Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2020:2288
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux Server Optional AUS (v. 7.4)Fixed RHSA-2020:2212
Red Hat Enterprise Linux Server Optional E4S (v. 7.4)Fixed RHSA-2020:2212
Red Hat Enterprise Linux Server Optional EUS (v. 7.5)Fixed RHSA-2020:1963
Red Hat Enterprise Linux Server Optional EUS (v. 7.6)Fixed RHSA-2020:2288
Red Hat Enterprise Linux Server Optional TUS (v. 7.4)Fixed RHSA-2020:2212
Red Hat Enterprise Linux Server TUS (v. 7.4)Fixed RHSA-2020:2212
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2020:2288
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2020:2288
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:3729, RHSA-2018:3730
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:3729, RHSA-2018:3730, RHSA-2018:3731
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4)Fixed RHSA-2018:3729, RHSA-2018:3730, RHSA-2018:3731
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5)Fixed RHSA-2018:3729, RHSA-2018:3730, RHSA-2018:3731
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2018:3729, RHSA-2018:3730, RHSA-2018:3731
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:3729, RHSA-2018:3730
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:3729, RHSA-2018:3730, RHSA-2018:3731
Not affected: 2 products
  • CloudForms Management Engine 5
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-17742
  2. 2026-10-03 Alias added: GHSA-7p4c-jf2w-hc3w

References

Patch 4

Advisory 10

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences