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TITLE:
Ruby "OCSP_basic_verify()" Certificate Validation Vulnerability

SECUNIA ADVISORY ID:
SA33750

VERIFY ADVISORY:
http://secunia.com/advisories/33750/

DESCRIPTION:
A vulnerability has been reported in Ruby, which can be exploited by
malicious people to conduct spoofing attacks.

The vulnerability is caused due to Ruby incorrectly checking the
return value of the "OCSP_basic_verify()" OpenSSL function and can be
exploited to trick an application into accepting an invalid X.509
certificate.

SOLUTION:
Fixed in the development repository.
http://redmine.ruby-lang.org/repositories/revision/ruby-19?rev=22440

PROVIDED AND/OR DISCOVERED BY:
Reported by Kurt Roeckx in a Debian bug report.

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513528
http://redmine.ruby-lang.org/issues/show/1091

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