Ruby: Denial of Service vulnerability

Ruby: Denial of Service vulnerability The Ruby cgi.rb CGI library is vulnerable to a Denial of Service attack. ruby December 20, 2006 December 20, 2006: 01 157048 remote 1.8.5_p2 1.8.5_p2

Ruby is a dynamic, open source programming language with a focus on simplicity and productivity.

The read_multipart function of the CGI library shipped with Ruby (cgi.rb) does not properly check boundaries in MIME multipart content. This is a different issue than GLSA 200611-12.

The vulnerability can be exploited by sending the cgi.rb library a crafted HTTP request with multipart MIME encoding that contains a malformed MIME boundary specifier. Successful exploitation of the vulnerability causes the library to go into an infinite loop.

There is no known workaround at this time.

All Ruby users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/ruby-1.8.5_p2"

CVE-2006-6303 falco falco