From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue Sep 15 2009 - 19:10:12 CDT

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TITLE:
nginx "ngx_http_parse_complex_uri()" Buffer Underflow

SECUNIA ADVISORY ID:
SA36751

VERIFY ADVISORY:
http://secunia.com/advisories/36751/

DESCRIPTION:
A vulnerability has been reported in nginx, which can potentially be
exploited by malicious people to cause a DoS (Denial of Service) or
compromise a vulnerable system.

The vulnerability is caused due to an error in the processing of URLs
within the "ngx_http_parse_complex_uri()" function. This can be
exploited to cause a buffer underflow via a specially crafted request
and may allow execution of arbitrary code.

The vulnerability is reported in versions prior to 0.7.62, 0.6.39,
and 0.5.38.

SOLUTION:
Update to version 0.7.62, 0.6.39, or 0.5.38.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Chris Ries.

ORIGINAL ADVISORY:
http://marc.info/?l=nginx&m=125293592526306&w=2
http://marc.info/?l=nginx&m=125293560525709&w=2
http://marc.info/?l=nginx&m=125293570725902&w=2

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