CRLF injection vulnerability in libcurl 6.0 through 7.x before 7.40.0, when using an HTTP proxy, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in a URL.<a href=http://cwe.mitre.org/data/definitions/93.html target=_blank>CWE-93: CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')</a> http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-8150