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Date: Tue, 07 May 2013 16:36:54 +0200
From: Florian Weimer <>
CC: Andrew Alexeev <>
Subject: Re: nginx security advisory (CVE-2013-2028)

On 05/07/2013 02:44 PM, Andrew Alexeev wrote:
> Hello!
> Greg MacManus, of iSIGHT Partners Labs, found a security problem
> in several recent versions of nginx.  A stack-based buffer
> overflow might occur in a worker process while handling a
> specially crafted request, potentially resulting in arbitrary code
> execution (CVE-2013-2028).
> The problem affects nginx 1.3.9 - 1.4.0.

Isn't similar code in older version (say, 1.2.6) in 

> The problem is fixed in nginx 1.5.0, 1.4.1.
> Patch for the problem can be found here:

I think this fix is not quite correct because it is not possible to 
detect signed integer overflow in C after it has happened.  (Curiously, 
the original fix for CVE-2002-0392 had the same issue.)

Florian Weimer / Red Hat Product Security Team

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