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TI-2009-01815 Aliases CVE-2009-1904GHSA-prwc-wj59-8vwr

The BigDecimal library in Ruby 1.8.6 before p369 and 1.8.7 before p173 allows…

Priority LOW 37CWE-189Published · Updated

Key facts

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

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.

Summary

The BigDecimal library in Ruby 1.8.6 before p369 and 1.8.7 before p173 allows context-dependent attackers to cause a denial of service (application crash) via a string argument that represents a large number, as demonstrated by an attempted conversion to the Float data type.

Why it matters now

EPSS 0.12775 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory

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 · 2

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:ruby:1.8.6:*:*:*:*:*:*:*1.8.6Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:*1.8.7Vulnerableruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:*:*:*:*:*:*:* Versions 1.8.6 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:* Versions 1.8.7 Vulnerable ·ruby

Remediation

Red Hat 1 advisory

  • RHSA-2009:1140 Released 2009-07-02 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux (v. 5 server) ruby-1.8.5-5.el5_3.7, ruby-1.8.5-5.el5_3.7.i386, ruby-1.8.5-5.el5_3.7.ia64 +33
    • Red Hat Enterprise Linux AS version 4 irb-1.8.1-7.el4_8.3, irb-1.8.1-7.el4_8.3.i386, irb-1.8.1-7.el4_8.3.ia64 +25
    • Red Hat Enterprise Linux Desktop (v. 5 client) ruby-1.8.5-5.el5_3.7, ruby-1.8.5-5.el5_3.7.i386, ruby-docs-1.8.5-5.el5_3.7 +11
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) ruby-1.8.5-5.el5_3.7, ruby-devel-1.8.5-5.el5_3.7, ruby-devel-1.8.5-5.el5_3.7.i386 +2
    • Red Hat Enterprise Linux Desktop version 4 irb-1.8.1-7.el4_8.3, irb-1.8.1-7.el4_8.3.i386, ruby-1.8.1-7.el4_8.3 +11
    • Red Hat Enterprise Linux ES version 4 irb-1.8.1-7.el4_8.3, irb-1.8.1-7.el4_8.3.i386, irb-1.8.1-7.el4_8.3.ia64 +18
    • Red Hat Enterprise Linux WS version 4 irb-1.8.1-7.el4_8.3, irb-1.8.1-7.el4_8.3.i386, irb-1.8.1-7.el4_8.3.ia64 +18

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2009:1140
Red Hat Enterprise Linux AS version 4Fixed RHSA-2009:1140
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2009:1140
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2009:1140
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2009:1140
Red Hat Enterprise Linux ES version 4Fixed RHSA-2009:1140
Red Hat Enterprise Linux WS version 4Fixed RHSA-2009:1140

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-1904
  2. 2026-10-03 Alias added: GHSA-prwc-wj59-8vwr

References

Exploit 1

Patch 4

Advisory 7

Other 10

  • 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