From: Eric Wong <normalperson@...>
Date: 2013-08-19T23:55:51+00:00
Subject: [ruby-core:56747] Re: [ruby-trunk - Bug #8803][Open] Another buffer overflow

"user021 (a s)" <user021@hushmail.com> wrote:
> Bug #8803: Another buffer overflow 
> https://bugs.ruby-lang.org/issues/8803
> ruby -v: ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-linux]

>  I did increase opened files limit on my Ubuntu Release 12.04 (precise) 64-bit (Kernel Linux 3.2.0-40-generic) ulimit -n 20000 but no effect.thx in advance

Actually, this looks like problem with _FORTIFY_SOURCE usage in Ubuntu.
Please try 1.9.3-p448 or 2.0.0-p247, which contains workaround:
(r39985 in SVN)