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TI-2011-00865 Aliases CVE-2011-1005GHSA-h2rc-3ppq-6pjg

The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, and…

Priority LOW 28CWE-264Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Partial · None
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.

Summary

The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, and 1.8.8dev allows context-dependent attackers to modify strings via the Exception#to_s method, as demonstrated by changing an intended pathname.

Why it matters now

EPSS 0.02772 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 3 advisories

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 · 5

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:ruby:1.8.6:*:*:*:*:*:*:*1.8.6Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6-420:*:*:*:*:*:*:*1.8.6-420Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:*1.8.7Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7-330:*:*:*:*:*:*:*1.8.7-330Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.8:dev:*:*:*:*:*:*1.8.8 devVulnerableruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:*:*:*:*:*:*:* Versions 1.8.6 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6-420:*:*:*:*:*:*:* Versions 1.8.6-420 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:* Versions 1.8.7 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7-330:*:*:*:*:*:*:* Versions 1.8.7-330 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.8:dev:*:*:*:*:*:* Versions 1.8.8 dev Vulnerable ·ruby

Remediation

Red Hat 3 advisories

  • RHSA-2011:0910 Released 2011-06-28 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux Server (v. 6) ruby-1.8.7.299-7.el6_1.1, ruby-irb-1.8.7.299-7.el6_1.1, ruby-libs-1.8.7.299-7.el6_1.1 +1
    • Red Hat Enterprise Linux Server Optional (v. 6) ruby-1.8.7.299-7.el6_1.1, ruby-devel-1.8.7.299-7.el6_1.1, ruby-devel-1.8.7.299-7.el6_1.1.ppc +5
  • RHSA-2011:0909 Released 2011-06-28 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux (v. 5.6.z server) ruby-1.8.5-19.el5_6.1, ruby-1.8.5-19.el5_6.1.i386, ruby-1.8.5-19.el5_6.1.ia64 +33
  • RHSA-2011:0908 Released 2011-06-28 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux AS version 4 irb-1.8.1-16.el4, irb-1.8.1-16.el4.i386, irb-1.8.1-16.el4.ia64 +25
    • Red Hat Enterprise Linux Desktop version 4 irb-1.8.1-16.el4, irb-1.8.1-16.el4.i386, ruby-1.8.1-16.el4 +11
    • Red Hat Enterprise Linux ES version 4 irb-1.8.1-16.el4, irb-1.8.1-16.el4.i386, irb-1.8.1-16.el4.ia64 +18
    • Red Hat Enterprise Linux WS version 4 irb-1.8.1-16.el4, irb-1.8.1-16.el4.i386, irb-1.8.1-16.el4.ia64 +18

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5.6.z server)Fixed RHSA-2011:0909
Red Hat Enterprise Linux AS version 4Fixed RHSA-2011:0908
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2011:0908
Red Hat Enterprise Linux ES version 4Fixed RHSA-2011:0908
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:0910
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2011:0910
Red Hat Enterprise Linux WS version 4Fixed RHSA-2011:0908

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-1005
  2. 2026-10-03 Alias added: GHSA-h2rc-3ppq-6pjg

References

Exploit 1

Patch 3

Advisory 8

Other 3

  • TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
  • TI-2017-12709 Ruby before 2.4.3 allows Net::FTP command injection. CVSS 3.0HIGH 8.8
  • TI-2008-03501 Algorithmic complexity vulnerability in the WEBrick::HTTPUtils.split_header_value… CVSS 2.0HIGH 7.8
  • TI-2021-09891 In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web… CVSS 3.1HIGH 7.5
  • TI-2013-03637 Heap-based buffer overflow in Ruby 1.8, 1.9 before 1.9.3-p484, 2.0 before 2.0.0-p353, 2.1… CVSS 2.0MEDIUM 6.8
  • TI-2018-11751 An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5… CVSS 3.0CRITICAL 9.8
See all 92 →

Sources

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