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TI-2008-03303 Aliases CVE-2008-3443GHSA-v838-v88j-gw93

The regular expression engine (regex.c) in Ruby 1.8.5 and earlier, 1.8.6 through…

Priority LOW 39CWE-399Published · 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-399 and the CVSS impact.

Summary

The regular expression engine (regex.c) in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 allows remote attackers to cause a denial of service (infinite loop and crash) via multiple long requests to a Ruby socket, related to memory allocation failure, and as demonstrated against Webrick.

Why it matters now

EPSS 0.15678 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
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 · 51

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:ruby:1.6.8:*:*:*:*:*:*:*1.6.8Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.0:*:*:*:*:*:*:*1.8.0Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.1:*:*:*:*:*:*:*1.8.1Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.1:-9:*:*:*:*:*:*1.8.1 -9Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.2:*:*:*:*:*:*:*1.8.2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.2:preview2:*:*:*:*:*:*1.8.2 preview2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.2:preview3:*:*:*:*:*:*1.8.2 preview3Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.2:preview4:*:*:*:*:*:*1.8.2 preview4Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.3:*:*:*:*:*:*:*1.8.3Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.3:preview1:*:*:*:*:*:*1.8.3 preview1Vulnerableruby
  • cpe:2.3:a:ruby-lang:ruby:1.6.8:*:*:*:*:*:*:* Versions 1.6.8 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.0:*:*:*:*:*:*:* Versions 1.8.0 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.1:*:*:*:*:*:*:* Versions 1.8.1 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.1:-9:*:*:*:*:*:* Versions 1.8.1 -9 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.2:*:*:*:*:*:*:* Versions 1.8.2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.2:preview2:*:*:*:*:*:* Versions 1.8.2 preview2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.2:preview3:*:*:*:*:*:* Versions 1.8.2 preview3 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.2:preview4:*:*:*:*:*:* Versions 1.8.2 preview4 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.3:*:*:*:*:*:*:* Versions 1.8.3 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.3:preview1:*:*:*:*:*:* Versions 1.8.3 preview1 Vulnerable ·ruby
Show 41 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:ruby:1.8.3:preview2:*:*:*:*:*:*1.8.3 preview2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.3:preview3:*:*:*:*:*:*1.8.3 preview3Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.4:*:*:*:*:*:*:*1.8.4Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.4:preview1:*:*:*:*:*:*1.8.4 preview1Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.4:preview2:*:*:*:*:*:*1.8.4 preview2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.4:preview3:*:*:*:*:*:*1.8.4 preview3Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:*:*:*:*:*:*:*1.8.5Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p11:*:*:*:*:*:*1.8.5 p11Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p113:*:*:*:*:*:*1.8.5 p113Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p114:*:*:*:*:*:*1.8.5 p114Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p115:*:*:*:*:*:*1.8.5 p115Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p12:*:*:*:*:*:*1.8.5 p12Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p2:*:*:*:*:*:*1.8.5 p2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p231:*:*:*:*:*:*1.8.5 p231Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p35:*:*:*:*:*:*1.8.5 p35Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:p52:*:*:*:*:*:*1.8.5 p52Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:preview1:*:*:*:*:*:*1.8.5 preview1Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:preview2:*:*:*:*:*:*1.8.5 preview2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:preview3:*:*:*:*:*:*1.8.5 preview3Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:preview4:*:*:*:*:*:*1.8.5 preview4Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.5:preview5:*:*:*:*:*:*1.8.5 preview5Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:*:*:*:*:*:*:*1.8.6Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:p110:*:*:*:*:*:*1.8.6 p110Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:p111:*:*:*:*:*:*1.8.6 p111Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:p114:*:*:*:*:*:*1.8.6 p114Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:p230:*:*:*:*:*:*1.8.6 p230Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:p286:*:*:*:*:*:*1.8.6 p286Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:p36:*:*:*:*:*:*1.8.6 p36Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:preview1:*:*:*:*:*:*1.8.6 preview1Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:preview2:*:*:*:*:*:*1.8.6 preview2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.6:preview3:*:*:*:*:*:*1.8.6 preview3Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:*1.8.7Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:p17:*:*:*:*:*:*1.8.7 p17Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:p22:*:*:*:*:*:*1.8.7 p22Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:p71:*:*:*:*:*:*1.8.7 p71Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:preview1:*:*:*:*:*:*1.8.7 preview1Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:preview2:*:*:*:*:*:*1.8.7 preview2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:preview3:*:*:*:*:*:*1.8.7 preview3Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.8.7:preview4:*:*:*:*:*:*1.8.7 preview4Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.9.0:*:*:*:*:*:*:*1.9.0Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:1.9.0:r18423:*:*:*:*:*:*1.9.0 r18423Vulnerableruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.3:preview2:*:*:*:*:*:* Versions 1.8.3 preview2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.3:preview3:*:*:*:*:*:* Versions 1.8.3 preview3 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.4:*:*:*:*:*:*:* Versions 1.8.4 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.4:preview1:*:*:*:*:*:* Versions 1.8.4 preview1 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.4:preview2:*:*:*:*:*:* Versions 1.8.4 preview2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.4:preview3:*:*:*:*:*:* Versions 1.8.4 preview3 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:*:*:*:*:*:*:* Versions 1.8.5 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p11:*:*:*:*:*:* Versions 1.8.5 p11 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p113:*:*:*:*:*:* Versions 1.8.5 p113 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p114:*:*:*:*:*:* Versions 1.8.5 p114 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p115:*:*:*:*:*:* Versions 1.8.5 p115 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p12:*:*:*:*:*:* Versions 1.8.5 p12 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p2:*:*:*:*:*:* Versions 1.8.5 p2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p231:*:*:*:*:*:* Versions 1.8.5 p231 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p35:*:*:*:*:*:* Versions 1.8.5 p35 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:p52:*:*:*:*:*:* Versions 1.8.5 p52 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:preview1:*:*:*:*:*:* Versions 1.8.5 preview1 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:preview2:*:*:*:*:*:* Versions 1.8.5 preview2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:preview3:*:*:*:*:*:* Versions 1.8.5 preview3 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:preview4:*:*:*:*:*:* Versions 1.8.5 preview4 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.5:preview5:*:*:*:*:*:* Versions 1.8.5 preview5 Vulnerable ·ruby
  • 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:p110:*:*:*:*:*:* Versions 1.8.6 p110 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:p111:*:*:*:*:*:* Versions 1.8.6 p111 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:p114:*:*:*:*:*:* Versions 1.8.6 p114 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:p230:*:*:*:*:*:* Versions 1.8.6 p230 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:p286:*:*:*:*:*:* Versions 1.8.6 p286 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:p36:*:*:*:*:*:* Versions 1.8.6 p36 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:preview1:*:*:*:*:*:* Versions 1.8.6 preview1 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:preview2:*:*:*:*:*:* Versions 1.8.6 preview2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.6:preview3:*:*:*:*:*:* Versions 1.8.6 preview3 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:p17:*:*:*:*:*:* Versions 1.8.7 p17 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7:p22:*:*:*:*:*:* Versions 1.8.7 p22 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7:p71:*:*:*:*:*:* Versions 1.8.7 p71 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7:preview1:*:*:*:*:*:* Versions 1.8.7 preview1 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7:preview2:*:*:*:*:*:* Versions 1.8.7 preview2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7:preview3:*:*:*:*:*:* Versions 1.8.7 preview3 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.8.7:preview4:*:*:*:*:*:* Versions 1.8.7 preview4 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.9.0:*:*:*:*:*:*:* Versions 1.9.0 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:1.9.0:r18423:*:*:*:*:*:* Versions 1.9.0 r18423 Vulnerable ·ruby

Remediation

Red Hat 3 advisories

  • RHSA-2008:0896 Released 2008-10-21 · Red Hat rating Moderate
    ruby security update
    • Red Hat Desktop version 3 irb-1.6.8-13.el3, irb-1.6.8-13.el3.i386, ruby-1.6.8-13.el3 +11
    • Red Hat Enterprise Linux AS version 3 irb-1.6.8-13.el3, irb-1.6.8-13.el3.i386, irb-1.6.8-13.el3.ia64 +25
    • Red Hat Enterprise Linux ES version 3 irb-1.6.8-13.el3, irb-1.6.8-13.el3.i386, irb-1.6.8-13.el3.ia64 +18
    • Red Hat Enterprise Linux WS version 3 irb-1.6.8-13.el3, irb-1.6.8-13.el3.i386, irb-1.6.8-13.el3.ia64 +18
  • RHSA-2008:0897 Released 2008-10-21 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux (v. 5 server) ruby-1.8.5-5.el5_2.5, ruby-1.8.5-5.el5_2.5.i386, ruby-1.8.5-5.el5_2.5.ia64 +33
    • Red Hat Enterprise Linux AS version 4 irb-1.8.1-7.el4_7.1, irb-1.8.1-7.el4_7.1.i386, irb-1.8.1-7.el4_7.1.ia64 +25
    • Red Hat Enterprise Linux Desktop (v. 5 client) ruby-1.8.5-5.el5_2.5, ruby-1.8.5-5.el5_2.5.i386, ruby-docs-1.8.5-5.el5_2.5 +11
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) ruby-1.8.5-5.el5_2.5, ruby-devel-1.8.5-5.el5_2.5, ruby-devel-1.8.5-5.el5_2.5.i386 +2
    • Red Hat Enterprise Linux Desktop version 4 irb-1.8.1-7.el4_7.1, irb-1.8.1-7.el4_7.1.i386, ruby-1.8.1-7.el4_7.1 +11
    • Red Hat Enterprise Linux ES version 4 irb-1.8.1-7.el4_7.1, irb-1.8.1-7.el4_7.1.i386, irb-1.8.1-7.el4_7.1.ia64 +18
    • Red Hat Enterprise Linux WS version 4 irb-1.8.1-7.el4_7.1, irb-1.8.1-7.el4_7.1.i386, irb-1.8.1-7.el4_7.1.ia64 +18
  • RHSA-2008:0895 Released 2008-10-21 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 irb-1.6.4-7.el2.i386, ruby-1.6.4-7.el2, ruby-1.6.4-7.el2.i386 +4
    • Red Hat Enterprise Linux ES version 2.1 irb-1.6.4-7.el2.i386, ruby-1.6.4-7.el2, ruby-1.6.4-7.el2.i386 +4
    • Red Hat Enterprise Linux WS version 2.1 irb-1.6.4-7.el2.i386, ruby-1.6.4-7.el2, ruby-1.6.4-7.el2.i386 +4

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2008:0896
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2008:0897
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2008:0895
Red Hat Enterprise Linux AS version 3Fixed RHSA-2008:0896
Red Hat Enterprise Linux AS version 4Fixed RHSA-2008:0897
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2008:0897
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2008:0897
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2008:0897
Red Hat Enterprise Linux ES version 2.1Fixed RHSA-2008:0895
Red Hat Enterprise Linux ES version 3Fixed RHSA-2008:0896
Red Hat Enterprise Linux ES version 4Fixed RHSA-2008:0897
Red Hat Enterprise Linux WS version 2.1Fixed RHSA-2008:0895
Red Hat Enterprise Linux WS version 3Fixed RHSA-2008:0896
Red Hat Enterprise Linux WS version 4Fixed RHSA-2008:0897

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-3443
  2. 2026-10-03 Alias added: GHSA-v838-v88j-gw93

References

Exploit 1

Advisory 10

Other 4

  • 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