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nginx Buffer Underflow and Denial of Service Vulnerabilities
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Secunia Advisory:
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SA36751
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Release Date:
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2009-09-15
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Last Update:
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2009-11-23
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Popularity:
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1,590 views
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Critical:
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Highly critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | nginx 0.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Two vulnerabilities have been reported in nginx, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.
1) An error exists when processing URLs in 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.
2) A NULL-pointer dereference error in the "ngx_http_process_request_headers()" function can be exploited to crash the worker process and e.g. interrupt existing HTTP sessions by requesting an overly long URL.
The vulnerability is confirmed in version 0.7.61. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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