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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 multiple CVE identifiers related to Ruby. The CVE description should be regarded as authoritative, although it is likely to change.

    Published:Jun 20, 2008
    Last Modified:Apr 23, 2026
    EPS:Jun 24, 2008
    EPSS Score:0.06265
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Ruby-lang
    Product
    Ruby

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://blog.phusion.nl/2008/06/23/ruby-186-p230187-broke-your-app-ruby-enterprise-edition-to-the-rescue/
    http://lists.apple.com/archives/security-announce/2008//Jun/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00006.html
    http://secunia.com/advisories/30802
    http://secunia.com/advisories/30831
    http://secunia.com/advisories/30867
    http://secunia.com/advisories/30875
    http://secunia.com/advisories/30894
    http://secunia.com/advisories/31062
    http://secunia.com/advisories/31090
    http://secunia.com/advisories/31181
    http://secunia.com/advisories/31256
    http://secunia.com/advisories/31687
    http://secunia.com/advisories/33178
    http://security.gentoo.org/glsa/glsa-200812-17.xml
    http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.429562
    http://support.apple.com/kb/HT2163
    http://weblog.rubyonrails.org/2008/6/21/multiple-ruby-security-vulnerabilities
    http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0206
    http://www.debian.org/security/2008/dsa-1612
    http://www.debian.org/security/2008/dsa-1618
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:140
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:141
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:142
    http://www.matasano.com/log/1070/updates-on-drew-yaos-terrible-ruby-vulnerabilities/
    http://www.redhat.com/support/errata/RHSA-2008-0561.html
    http://www.ruby-forum.com/topic/157034
    http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/
    http://www.rubyinside.com/june-2008-ruby-security-vulnerabilities-927.html
    http://www.securityfocus.com/archive/1/493688/100/0/threaded
    http://www.securityfocus.com/bid/29903
    http://www.securitytracker.com/id?1020347
    http://www.ubuntu.com/usn/usn-621-1
    http://www.vupen.com/english/advisories/2008/1907/references
    http://www.vupen.com/english/advisories/2008/1981/references
    http://www.zedshaw.com/rants/the_big_ruby_vulnerabilities.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/43348
    https://issues.rpath.com/browse/RPL-2626
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9646
    https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00937.html
    http://blog.phusion.nl/2008/06/23/ruby-186-p230187-broke-your-app-ruby-enterprise-edition-to-the-rescue/
    http://lists.apple.com/archives/security-announce/2008//Jun/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00006.html
    http://secunia.com/advisories/30802
    http://secunia.com/advisories/30831
    http://secunia.com/advisories/30867
    http://secunia.com/advisories/30875
    http://secunia.com/advisories/30894
    http://secunia.com/advisories/31062
    http://secunia.com/advisories/31090
    http://secunia.com/advisories/31181
    http://secunia.com/advisories/31256
    http://secunia.com/advisories/31687
    http://secunia.com/advisories/33178
    http://security.gentoo.org/glsa/glsa-200812-17.xml
    http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.429562
    http://support.apple.com/kb/HT2163
    http://weblog.rubyonrails.org/2008/6/21/multiple-ruby-security-vulnerabilities
    http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0206
    http://www.debian.org/security/2008/dsa-1612
    http://www.debian.org/security/2008/dsa-1618
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:140
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:141
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:142
    http://www.matasano.com/log/1070/updates-on-drew-yaos-terrible-ruby-vulnerabilities/
    http://www.redhat.com/support/errata/RHSA-2008-0561.html
    http://www.ruby-forum.com/topic/157034
    http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/
    http://www.rubyinside.com/june-2008-ruby-security-vulnerabilities-927.html
    http://www.securityfocus.com/archive/1/493688/100/0/threaded
    http://www.securityfocus.com/bid/29903
    http://www.securitytracker.com/id?1020347
    http://www.ubuntu.com/usn/usn-621-1
    http://www.vupen.com/english/advisories/2008/1907/references
    http://www.vupen.com/english/advisories/2008/1981/references
    http://www.zedshaw.com/rants/the_big_ruby_vulnerabilities.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/43348
    https://issues.rpath.com/browse/RPL-2626
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9646
    https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00937.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High