Two vulnerabilities have been reported in Ruby, which can be exploited by malicious people to bypass certain security restrictions, and to cause a DoS (Denial of Service).

1) An error exists in "eval.c" when enforcing safe-level protections. This can be exploited to execute certain insecure methods.

The vulnerability has been reported in the following versions:
* Ruby version 1.6.8 and prior (old release).
* Ruby version 1.8.2 and prior (stable).
* Ruby version 1.9.0 2005-09-01 and prior (development).

2) An error within the XMLRPC::Server and WEBrick::HTTPServer classes can cause a server that is written using the classes to stop accept connections via a specially-crafted request that causes the server block on a socket operation.

The vulnerability has been reported in the following versions:
* Ruby version 1.8.2 and prior (stable).
* Ruby version 1.9.0 prior to 2005-07-10 (development).

Solution
Update to the fixed versions.
Further details available to Secunia VIM customers

Provided and/or discovered by
The vendor credits Dr. Yutaka Oiwa and Mr. Tanaka Tetsu, Research Center for Information Security, National Institute of Advanced Industrial Science and Technology.

Changelog
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Original Advisory
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/27787

JP Vendor Status Notes (Japanese):
http://jvn.jp/jp/JVN%2362914675/243894/index.html

Other references
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