CVE-2015-5741

La biblioteca net/http en el archivo net/http/transfer.go en Go versiones anteriores a 1.4.3, no analiza apropiadamente los encabezados HTTP, lo que permite a atacantes remotos llevar a cabo ataques de tráfico no autorizado de peticiones HTTP por medio de una petición que contiene campos de encabezado Content-Length y Transfer-Encoding .

HTTP-request vulnerabilities have been found in the Golang net/http and net/textproto libraries. Request headers with double Content-Length fields do not generate a 400 error (the second field is ignored), and invalid fields are parsed as valid (for example, "Content Length:" with a space in the middle is accepted). A non-authenticated attacker could exploit these flaws to bypass security controls, perform web-cache poisoning, or alter the request/response map (denial of service).