CVE-2013-2028

The ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow.

The ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow.

La función ngx_http_parse_chunked en http/ngx_http_parse.c en nginx v1.3.9 hasta v1.4.0 permite a atacantes remotos causar una denegación de servicio (caída) y ejecutar código arbitrario mediante una solicitud Transfer-Encoding (chunked) con un tamaño de chunk de gran longitud, lo que genera un error de "integer signedness" y un desbordamiento de búfer.