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[nginx-announce] nginx security advisory (CVE-2013-2028)

Posted by Maxim Dounin 
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.

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

As a temporary workaround the following configuration
can be used in each server{} block:

if ($http_transfer_encoding ~* chunked) {
return 444;
}


--
Maxim Dounin
http://nginx.org/en/donation.html

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