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Fencer Vulns
critical 10.0

CVE-2008-2663 json

Multiple integer overflows in the rb_ary_store function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and 1.…

published 2008-06-24 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-2658

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Multiple integer overflows in the rb_ary_store function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and 1.8.7 before 1.8.7-p22 allow context-dependent attackers to execute arbitrary code or cause a denial of service via unknown vectors, a different issue than CVE-2008-2662, CVE-2008-2664, 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.

Patch / fix

  • ruby-lang ruby 1.8.5.231, 1.8.6.230, 1.8.7.22
  • ruby4.0 hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-libs hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-bundled-gems hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-default-gems hummingbird 1 4.0.0-33.3.hum1
  • ruby3.3 hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-libs hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-bundled-gems hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-default-gems hummingbird 1 3.3.10-23.1.hum1

red hat advisories RHSA-2026:8838RHSA-2026:7305RHSA-2026:7307RHSA-2008:0562RHSA-2008:0561

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-2663 updated

ruby: Integer overflows in rb_ary_store()

  • Red Hat Desktop version 3 irb 1.6.8-12.el3, ruby 1.6.8-12.el3, ruby-libs 1.6.8-12.el3, ruby-mode 1.6.8-12.el3, ruby-tcltk 1.6.8-12.el3
    fixed: vendor fix RHSA-2008:0562
  • Red Hat Enterprise Linux (v. 5 server) ruby 1.8.5-5.el5_2.3, ruby-ri 1.8.5-5.el5_2.3, ruby-irb 1.8.5-5.el5_2.3, ruby-libs 1.8.5-5.el5_2.3, ruby-mode 1.8.5-5.el5_2.3, ruby-rdoc 1.8.5-5.el5_2.3, +1 more
    fixed: vendor fix RHSA-2008:0561
  • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 irb 1.6.4-6.el2, ruby 1.6.4-6.el2, ruby-libs 1.6.4-6.el2, ruby-tcltk 1.6.4-6.el2 Red Hat Enterprise Linux AS version 3 irb 1.6.8-12.el3, ruby 1.6.8-12.el3, ruby-libs 1.6.8-12.el3, ruby-mode 1.6.8-12.el3, ruby-tcltk 1.6.8-12.el3
    fixed: vendor fix RHSA-2008:0562
  • Red Hat Enterprise Linux AS version 4 irb 1.8.1-7.el4_6.1, ruby 1.8.1-7.el4_6.1, ruby-libs 1.8.1-7.el4_6.1, ruby-mode 1.8.1-7.el4_6.1, ruby-tcltk 1.8.1-7.el4_6.1 Red Hat Enterprise Linux Desktop (v. 5 client) ruby 1.8.5-5.el5_2.3, ruby-ri 1.8.5-5.el5_2.3, ruby-irb 1.8.5-5.el5_2.3, ruby-libs 1.8.5-5.el5_2.3, ruby-mode 1.8.5-5.el5_2.3, ruby-rdoc 1.8.5-5.el5_2.3, +1 more Red Hat Enterprise Linux Desktop version 4 irb 1.8.1-7.el4_6.1, ruby 1.8.1-7.el4_6.1, ruby-libs 1.8.1-7.el4_6.1, ruby-mode 1.8.1-7.el4_6.1, ruby-tcltk 1.8.1-7.el4_6.1 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) ruby 1.8.5-5.el5_2.3, ruby-ri 1.8.5-5.el5_2.3, ruby-irb 1.8.5-5.el5_2.3, ruby-libs 1.8.5-5.el5_2.3, ruby-mode 1.8.5-5.el5_2.3, ruby-rdoc 1.8.5-5.el5_2.3, +1 more
    fixed: vendor fix RHSA-2008:0561
  • Red Hat Enterprise Linux ES version 2.1 irb 1.6.4-6.el2, ruby 1.6.4-6.el2, ruby-libs 1.6.4-6.el2, ruby-tcltk 1.6.4-6.el2 Red Hat Enterprise Linux ES version 3 irb 1.6.8-12.el3, ruby 1.6.8-12.el3, ruby-libs 1.6.8-12.el3, ruby-mode 1.6.8-12.el3, ruby-tcltk 1.6.8-12.el3
    fixed: vendor fix RHSA-2008:0562
  • Red Hat Enterprise Linux ES version 4 irb 1.8.1-7.el4_6.1, ruby 1.8.1-7.el4_6.1, ruby-libs 1.8.1-7.el4_6.1, ruby-mode 1.8.1-7.el4_6.1, ruby-tcltk 1.8.1-7.el4_6.1
    fixed: vendor fix RHSA-2008:0561
  • Red Hat Enterprise Linux WS version 2.1 irb 1.6.4-6.el2, ruby 1.6.4-6.el2, ruby-libs 1.6.4-6.el2, ruby-tcltk 1.6.4-6.el2 Red Hat Enterprise Linux WS version 3 irb 1.6.8-12.el3, ruby 1.6.8-12.el3, ruby-libs 1.6.8-12.el3, ruby-mode 1.6.8-12.el3, ruby-tcltk 1.6.8-12.el3
    fixed: vendor fix RHSA-2008:0562
  • Red Hat Enterprise Linux WS version 4 irb 1.8.1-7.el4_6.1, ruby 1.8.1-7.el4_6.1, ruby-libs 1.8.1-7.el4_6.1, ruby-mode 1.8.1-7.el4_6.1, ruby-tcltk 1.8.1-7.el4_6.1
    fixed: vendor fix RHSA-2008:0561
show 1 more
  • Red Hat Hardened Images ruby3.4 3.4.8-31.1.hum1, ruby4.0 4.0.0-33.3.hum1, ruby3.3 3.3.10-23.1.hum1, ruby3.4-default-gems 3.4.8-31.1.hum1, ruby4.0-default-gems 4.0.0-33.3.hum1, ruby3.3-default-gems 3.3.10-23.1.hum1
    fixed: vendor fix RHSA-2026:7305

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.46% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.