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. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.
2.7.12-1ubuntu0~16.04.83.5.2-2ubuntu0~16.04.82.7.15-4ubuntu4~18.04.13.6.8-1~18.04.22.7.6-8ubuntu0.6+esm23.4.3-1ubuntu1~14.04.7+esm23.5.2-2ubuntu0~16.04.4~14.04.1+esm1Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:LI:LA:NCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N