An open redirect was discovered in Symfony 2.7.x before 2.7.50, 2.8.x
before 2.8.49, 3.x before 3.4.20, 4.0.x before 4.0.15, 4.1.x before 4.1.9
and 4.2.x before 4.2.1. By using backslashes in the `_failure_path` input
field of login forms, an attacker can work around the redirection target
restrictions and effectively redirect the user to any domain after login.
Upstream:released (3.4.20+dfsg-1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 18.04 LTS (Bionic Beaver):needed
Ubuntu 18.10 (Cosmic Cuttlefish):needed
Ubuntu 19.04 (Disco Dingo):not-affected (3.4.20+dfsg-1)
Ubuntu 19.10 (Eoan):not-affected (3.4.20+dfsg-1)
More Information

Updated: 2019-07-10 22:14:24 UTC (commit 4812d6013fea591ddfee25a8b27f72cfb613e75a)