FreeBSD: VID-5536ea5f-6814-11e9-a8f7-0050562a4d7b (CVE-2019-7313): buildbot -- CRLF injection in Buildbot login and logout redirect code

A CRLF can be injected in Location header of /auth/login and /auth/logout This is due to lack of input validation in the buildbot redirection code. It was not found a way to impact Buildbot product own security through this vulnerability, but it could be used to compromise other sites hosted on the same domain as Buildbot. - cookie injection a master domain (ie if your buildbot is on buildbot.buildbot.net, one can inject a cookie on *.buildbot.net, which could impact another website hosted in your domain) - HTTP response splitting and cache poisoning (browser or proxy) are also typical impact of this vulnerability class, but might be impractical to exploit.