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TI-2008-02546 Aliases CVE-2008-2664GHSA-c4h6-p7gp-39x2

The rb_str_format function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6…

Priority MEDIUM 41CWE-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 · Complete
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 rb_str_format function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2 allows context-dependent attackers to trigger memory corruption via unspecified vectors related to alloca, a different issue than CVE-2008-2662, CVE-2008-2663, and CVE-2008-2725. NOTE: as of 20080624, there has been inconsistent usage of multiple CVE identifiers related to Ruby. The CVE description should be regarded as authoritative, although it is likely to change.

Why it matters now

EPSS 0.0428 91st percentileScored 2026-11-07
Fix Fixed Red Hat: 5 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 · 6

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*up to 1.8.4; after 1.8.5, before 1.8.5.231; 1.8.6 to before 1.8.6.230; 1.8.7 to before 1.8.7.22; 1.9.0 to before 1.9.0.2Vulnerableruby
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*4.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*6.06VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:*7.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*7.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*8.04VulnerableCanonical
  • cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* Versions up to 1.8.4; after 1.8.5, before 1.8.5.231; 1.8.6 to before 1.8.6.230; 1.8.7 to before 1.8.7.22; 1.9.0 to before 1.9.0.2 Vulnerable ·ruby
  • cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* Versions 6.06 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:* Versions 7.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:* Versions 7.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:* Versions 8.04 Vulnerable ·Canonical

Remediation

Red Hat 5 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 2 more Red Hat advisories
  • RHSA-2008:0562 Released 2008-07-14 · Red Hat rating Moderate
    ruby security update
    • Red Hat Desktop version 3 irb-1.6.8-12.el3, irb-1.6.8-12.el3.i386, ruby-1.6.8-12.el3 +11
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 irb-1.6.4-6.el2.i386, ruby-1.6.4-6.el2, ruby-1.6.4-6.el2.i386 +4
    • Red Hat Enterprise Linux AS version 3 irb-1.6.8-12.el3, irb-1.6.8-12.el3.i386, irb-1.6.8-12.el3.ia64 +25
    • Red Hat Enterprise Linux ES version 2.1 irb-1.6.4-6.el2.i386, ruby-1.6.4-6.el2, ruby-1.6.4-6.el2.i386 +4
    • Red Hat Enterprise Linux ES version 3 irb-1.6.8-12.el3, irb-1.6.8-12.el3.i386, irb-1.6.8-12.el3.ia64 +18
    • Red Hat Enterprise Linux WS version 2.1 irb-1.6.4-6.el2.i386, ruby-1.6.4-6.el2, ruby-1.6.4-6.el2.i386 +4
    • Red Hat Enterprise Linux WS version 3 irb-1.6.8-12.el3, irb-1.6.8-12.el3.i386, irb-1.6.8-12.el3.ia64 +18
  • RHSA-2008:0561 Released 2008-07-14 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux (v. 5 server) ruby-1.8.5-5.el5_2.3, ruby-1.8.5-5.el5_2.3.i386, ruby-1.8.5-5.el5_2.3.ia64 +33
    • Red Hat Enterprise Linux AS version 4 irb-1.8.1-7.el4_6.1, irb-1.8.1-7.el4_6.1.i386, irb-1.8.1-7.el4_6.1.ia64 +25
    • Red Hat Enterprise Linux Desktop (v. 5 client) ruby-1.8.5-5.el5_2.3, ruby-1.8.5-5.el5_2.3.i386, ruby-docs-1.8.5-5.el5_2.3 +11
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) ruby-1.8.5-5.el5_2.3, ruby-devel-1.8.5-5.el5_2.3, ruby-devel-1.8.5-5.el5_2.3.i386 +2
    • Red Hat Enterprise Linux Desktop version 4 irb-1.8.1-7.el4_6.1, irb-1.8.1-7.el4_6.1.i386, ruby-1.8.1-7.el4_6.1 +11
    • Red Hat Enterprise Linux ES version 4 irb-1.8.1-7.el4_6.1, irb-1.8.1-7.el4_6.1.i386, irb-1.8.1-7.el4_6.1.ia64 +18
    • Red Hat Enterprise Linux WS version 4 irb-1.8.1-7.el4_6.1, irb-1.8.1-7.el4_6.1.i386, irb-1.8.1-7.el4_6.1.ia64 +18

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2008:0562
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2008:0561
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2008:0562
Red Hat Enterprise Linux AS version 3Fixed RHSA-2008:0562
Red Hat Enterprise Linux AS version 4Fixed RHSA-2008:0561
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2008:0561
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2008:0561
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2008:0561
Red Hat Enterprise Linux ES version 2.1Fixed RHSA-2008:0562
Red Hat Enterprise Linux ES version 3Fixed RHSA-2008:0562
Red Hat Enterprise Linux ES version 4Fixed RHSA-2008:0561
Red Hat Enterprise Linux WS version 2.1Fixed RHSA-2008:0562
Red Hat Enterprise Linux WS version 3Fixed RHSA-2008:0562
Red Hat Enterprise Linux WS version 4Fixed RHSA-2008:0561
Red Hat Hardened ImagesFixed RHSA-2026:7305, RHSA-2026:7307, RHSA-2026:8838

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-2664
  2. 2026-10-03 Alias added: GHSA-c4h6-p7gp-39x2

References

Patch 1

Advisory 21

Other 3

Sources

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