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TI-2018-06330 Aliases CVE-2018-8780GHSA-fphx-j9v2-w2cx

In 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 MEDIUM 52CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 32 fixed, 6 without a fix

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

Summary

In 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, the Dir.open, Dir.new, Dir.entries and Dir.empty? methods do not check NULL characters. When using the corresponding method, unintentional directory traversal may be performed.

Why it matters now

EPSS 0.09982 95th percentileScored 2026-11-07
Fix Partial Red Hat: 10 advisoriesRed Hat: 32 fixed, 6 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 · 8

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*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:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*17.10VulnerableCanonical
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* Versions 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:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* Versions 17.10 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

Red Hat 10 advisories

  • RHSA-2026:8838 Released 2026-04-17 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images ruby4.0-4.0.0-33.3.hum1@aarch64, ruby4.0-4.0.0-33.3.hum1@src, ruby4.0-4.0.0-33.3.hum1@x86_64 +10
  • RHSA-2026:7307 Released 2026-04-09 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images ruby3.4-3.4.8-31.1.hum1@aarch64, ruby3.4-3.4.8-31.1.hum1@src, ruby3.4-3.4.8-31.1.hum1@x86_64 +10
  • RHSA-2026:7305 Released 2026-04-09 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images ruby3.3-3.3.10-23.1.hum1@aarch64, ruby3.3-3.3.10-23.1.hum1@src, ruby3.3-3.3.10-23.1.hum1@x86_64 +10
Show 7 more Red Hat advisories
  • RHSA-2020:0663 Released 2020-03-03 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) ruby-2.0.0.648-36.el7_6, ruby-irb-2.0.0.648-36.el7_6, ruby-libs-2.0.0.648-36.el7_6 +6
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) ruby-devel-2.0.0.648-36.el7_6, ruby-doc-2.0.0.648-36.el7_6, ruby-tcltk-2.0.0.648-36.el7_6 +3
    • Red Hat Enterprise Linux Server EUS (v. 7.6) ruby-2.0.0.648-36.el7_6, ruby-irb-2.0.0.648-36.el7_6, ruby-libs-2.0.0.648-36.el7_6 +7
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) ruby-devel-2.0.0.648-36.el7_6, ruby-doc-2.0.0.648-36.el7_6, ruby-tcltk-2.0.0.648-36.el7_6 +3
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) ruby-2.0.0.648-36.el7_6, ruby-irb-2.0.0.648-36.el7_6, ruby-libs-2.0.0.648-36.el7_6 +6
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) ruby-devel-2.0.0.648-36.el7_6, ruby-doc-2.0.0.648-36.el7_6, ruby-tcltk-2.0.0.648-36.el7_6 +3
  • RHSA-2020:0591 Released 2020-02-25 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux Server AUS (v. 7.4) ruby-2.0.0.648-35.el7_4, ruby-irb-2.0.0.648-35.el7_4, ruby-libs-2.0.0.648-35.el7_4 +6
    • Red Hat Enterprise Linux Server E4S (v. 7.4) ruby-2.0.0.648-35.el7_4, ruby-irb-2.0.0.648-35.el7_4, ruby-libs-2.0.0.648-35.el7_4 +6
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) ruby-devel-2.0.0.648-35.el7_4, ruby-doc-2.0.0.648-35.el7_4, ruby-tcltk-2.0.0.648-35.el7_4 +3
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.4) ruby-devel-2.0.0.648-35.el7_4, ruby-doc-2.0.0.648-35.el7_4, ruby-tcltk-2.0.0.648-35.el7_4 +3
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.4) ruby-devel-2.0.0.648-35.el7_4, ruby-doc-2.0.0.648-35.el7_4, ruby-tcltk-2.0.0.648-35.el7_4 +3
    • Red Hat Enterprise Linux Server TUS (v. 7.4) ruby-2.0.0.648-35.el7_4, ruby-irb-2.0.0.648-35.el7_4, ruby-libs-2.0.0.648-35.el7_4 +6
  • RHSA-2020:0542 Released 2020-02-19 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) ruby-2.0.0.648-35.el7_5, ruby-irb-2.0.0.648-35.el7_5, ruby-libs-2.0.0.648-35.el7_5 +6
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) ruby-devel-2.0.0.648-35.el7_5, ruby-doc-2.0.0.648-35.el7_5, ruby-tcltk-2.0.0.648-35.el7_5 +3
    • Red Hat Enterprise Linux Server EUS (v. 7.5) ruby-2.0.0.648-35.el7_5, ruby-irb-2.0.0.648-35.el7_5, ruby-libs-2.0.0.648-35.el7_5 +7
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.5) ruby-devel-2.0.0.648-35.el7_5, ruby-doc-2.0.0.648-35.el7_5, ruby-tcltk-2.0.0.648-35.el7_5 +3
  • 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
CloudForms Management Engine 5AffectedNo fix yet
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Hardened ImagesAffectedNo fix yet
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-2020:0542
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)Fixed RHSA-2020:0663
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5)Fixed RHSA-2020:0542
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6)Fixed RHSA-2020:0663
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux Server AUS (v. 7.4)Fixed RHSA-2020:0591
Red Hat Enterprise Linux Server E4S (v. 7.4)Fixed RHSA-2020:0591
Red Hat Enterprise Linux Server EUS (v. 7.5)Fixed RHSA-2020:0542
Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2020:0663
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:2028
Red Hat Enterprise Linux Server Optional AUS (v. 7.4)Fixed RHSA-2020:0591
Red Hat Enterprise Linux Server Optional E4S (v. 7.4)Fixed RHSA-2020:0591
Red Hat Enterprise Linux Server Optional EUS (v. 7.5)Fixed RHSA-2020:0542
Red Hat Enterprise Linux Server Optional EUS (v. 7.6)Fixed RHSA-2020:0663
Red Hat Enterprise Linux Server Optional TUS (v. 7.4)Fixed RHSA-2020:0591
Red Hat Enterprise Linux Server TUS (v. 7.4)Fixed RHSA-2020:0591
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-2020:0663
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2020:0663
Red Hat Hardened ImagesFixed RHSA-2026:7305, RHSA-2026:7307, RHSA-2026:8838
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
  • Red Hat Enterprise Linux 8
  • Red Hat Hardened Images

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-8780
  2. 2026-10-03 Alias added: GHSA-fphx-j9v2-w2cx
  3. 2026-11-02 Affected versions changed · Red Hat

References

Patch 4

Advisory 14

Sources

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