Privoxy is a proxy server from the American Privoxy team that does not cache web pages and comes with filtering. It has advanced filtering features to enhance privacy, modify web data and HTTP headers, control access and remove ads and other annoying Internet junk. privoxy has flexible configuration and can be customized to individual needs. An input validation error vulnerability exists in Privoxy, which stems from the fact that the product’s send_http_request does not do a valid validation of input data. An attacker could cause a denial of service through this vulnerability.