oss-security - Lua 5.1.4

Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers

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Date: Tue, 24 Mar 2009 14:37:13 -0700
From: Kees Cook <kees@...ntu.com>
To: oss-security@...ts.openwall.com
Subject: Lua 5.1.4

Has anyone looked at the Lua fixes[1] in 5.1.4?  I'm not familiar with the
codebase, but it seems that several may have security implications:

 2: stack overflow  (this is the Lua stack? so... heap overflow?)
 3: integer overflow
 4: integer overflow
 6: stack overflow  (this is the Lua stack? so... heap overflow?)
 8: memory writing?
 9: memory reading
10: CPU DoS

I haven't had a chance to examine it closely yet.  Has anyone looked at
these changes?

-Kees

[1] http://www.lua.org/bugs.html

-- 
Kees Cook
Ubuntu Security Team

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