The read_multipart function in cgi.rb in Ruby before 1.8.5-p2 does...

Vulnerability Description

The read_multipart function in cgi.rb in Ruby before 1.8.5-p2 does not properly detect boundaries in MIME multipart content, which allows remote attackers to cause a denial of service (infinite loop) via crafted HTTP requests, a different issue than CVE-2006-5467.

References

• http://docs.info.apple.com/article.html?artnum=305530
• http://www.ubuntu.com/usn/usn-394-1
• http://secunia.com/advisories/31090
• http://secunia.com/advisories/27576
• http://www.vupen.com/english/advisories/2007/1939
• http://jvn.jp/jp/JVN%2384798830/index.html
• http://secunia.com/advisories/23268
• http://lists.apple.com/archives/security-announce/2007/May/msg00004.html
• http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=218287
• http://www.ruby-lang.org/en/news/2006/12/04/another-dos-vulnerability-in-cgi-library/
• http://secunia.com/advisories/25402
• http://secunia.com/advisories/23165
• http://www.redhat.com/support/errata/RHSA-2007-0961.html
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10529
• https://exchange.xforce.ibmcloud.com/vulnerabilities/30734
• http://securitytracker.com/id?1017363
• http://www.novell.com/linux/security/advisories/2007_4_sr.html
• http://bugs.gentoo.org/show_bug.cgi?id=157048
• http://www.ruby-lang.org/cgi-bin/cvsweb.cgi/ruby/lib/cgi.rb.diff?f=h&only_with_tag=MAIN&r1=text&tr1=1.92&r2=text&tr2=1.91
• http://www.vupen.com/english/advisories/2006/4855
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:225
• http://security.gentoo.org/glsa/glsa-200612-21.xml
• http://secunia.com/advisories/23454
• http://www.securityfocus.com/bid/21441