CVE-2018-11408: Open redirect vulnerability on security handlers

Affected versions

Symfony 2.7.0 to 2.7.47, 2.8.0 to 2.8.40, 3.3.0 to 3.3.16, 3.4.0 to 3.4.10, and 4.0.0 to 4.0.10 versions of the Symfony Security component are affected by this security issue.

The issue has been fixed in Symfony 2.7.48, 2.8.41, 3.3.17, 3.4.11, and 4.0.11. 4.1.0 has also been fixed before its final release.

Note that no fixes are provided for Symfony 3.0, 3.1, and 3.2 as they are not maintained anymore.

Description

This is a continuation of CVE-2017-16652, where we missed an edge case (when the security.http_utils was inlined by the container).

Resolution

The fix solves the issue for the edge case.

Credits

I would like to thank Antal Áron for reporting this security issue, Nicolas Grekas for providing a fix, and the Symfony Core Team for reviewing the patch.

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