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CVE-2008-2664

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…

Severity
High 7.8
Published
24 Jun 2008
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.8.5.231, 1.8.6.230, 1.8.7.22, 1.9.0.2
Exploit chance
4.3% in the next 30 daysHigher than 91% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed
Attacker can
Take it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Sources
NVD

Description

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.

From NVD.

Affected software

SoftwareAffected versions
RubyServers and applications · cpe:a:ruby-lang:ruby
  • Every version up to 1.8.4
  • After 1.8.5 before 1.8.5.231
  • From 1.8.6 before 1.8.6.230
  • From 1.8.7 before 1.8.7.22
  • From 1.9.0 before 1.9.0.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2008-2664
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2008-2664