[HIGH] Denial of service with a malicious HTTP Host header

PKSA-nvg8-cqm4-3ng3 CVE-2014-5244 GHSA-v77v-x634-9m56

Affected package: symfony/symfony

Affected version: >=2.0.0,<2.1.0|>=2.1.0,<2.2.0|>=2.2.0,<2.3.0|>=2.3.0,<2.3.19|>=2.4.0,<2.4.9|>=2.5.0,<2.5.4

Reported by:
GitHub, FriendsOfPHP/security-advisories