[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <51891186.40602@redhat.com>
Date: Tue, 07 May 2013 16:36:54 +0200
From: Florian Weimer <fweimer@...hat.com>
To: oss-security@...ts.openwall.com
CC: Andrew Alexeev <andrew@...nx.com>
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
src/http/modules/ngx_http_proxy_module.c?
> The problem is fixed in nginx 1.5.0, 1.4.1.
>
> Patch for the problem can be found here:
>
> http://nginx.org/download/patch.2013.chunked.txt
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
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
