An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib
in Python 3.x through 3.7.3. CRLF injection is possible if the attacker
controls a url parameter, as demonstrated by the first argument to
urllib.request.urlopen with \r\n (specifically in the query string after a ?
character) followed by an HTTP header or a Redis command.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
