The cgi.rb CGI library for Ruby 1.8 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via an HTTP request with a multipart MIME body that contains an invalid boundary specifier, as demonstrated using a specifier that begins with a "-" instead of "--" and contains an inconsistent ID.

References

• https://nvd.nist.gov/vuln/detail/CVE-2006-5467
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10185
• http://docs.info.apple.com/article.html?artnum=305530
• http://lists.apple.com/archives/security-announce/2007/May/msg00004.html
• http://rubyforge.org/pipermail/mongrel-users/2006-October/001946.html
• http://secunia.com/advisories/22615
• http://secunia.com/advisories/22624
• http://secunia.com/advisories/22761
• http://secunia.com/advisories/22929
• http://secunia.com/advisories/22932
• http://secunia.com/advisories/23040
• http://secunia.com/advisories/23344
• http://secunia.com/advisories/25402
• http://security.gentoo.org/glsa/glsa-200611-12.xml
• http://securitytracker.com/id?1017194
• http://www.debian.org/security/2006/dsa-1234
• http://www.debian.org/security/2006/dsa-1235
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:192
• http://www.novell.com/linux/security/advisories/2006_26_sr.html
• http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.030-ruby.html
• http://www.redhat.com/support/errata/RHSA-2006-0729.html
• http://www.securityfocus.com/bid/20777
• http://www.ubuntu.com/usn/usn-371-1
• http://www.vupen.com/english/advisories/2006/4244
• http://www.vupen.com/english/advisories/2006/4245
• http://www.vupen.com/english/advisories/2007/1939