GHSA-whgv-8cg3-7hcm Symphony Denial of Service Via Overlong Usernames

• Packagist symfony/security-http: >= 2.3.0, < 2.3.41 → fixed in 2.3.41 • Packagist symfony/security-http: >= 2.4.0, < 2.7.13 → fixed in 2.7.13 • Packagist symfony/security-http: >= 2.8.0, < 2.8.6 → fixed in 2.8.6 • Packagist symfony/security-http: >= 3.0.0, < 3.0.6 → fixed in 3.0.6 • Packagist symfony/security: >= 2.3.0, < 2.3.41 → fixed in 2.3.41 • Packagist symfony/security: >= 2.4.0, < 2.7.13 → fixed in 2.7.13 • Packagist symfony/security: >= 2.8.0, < 2.8.6 → fixed in 2.8.6 • Packagist symfony/security: >= 3.0.0, < 3.0.6 → fixed in 3.0.6 • Packagist symfony/symfony: >= 2.3.0, < 2.3.41 → fixed in 2.3.41 • Packagist symfony/symfony: >= 2.4.0, < 2.7.13 → fixed in 2.7.13 • Packagist symfony/symfony: >= 2.8.0, < 2.8.6 → fixed in 2.8.6 • Packagist symfony/symfony: >= 3.0.0, < 3.0.6 → fixed in 3.0.6

The attemptAuthentication function in `Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php` in Symfony before 2.3.41, 2.7.x before 2.7.13, 2.8.x before 2.8.6, and 3.0.x before 3.0.6 does not limit the length of a username stored in a session, which allows remote attackers to cause a denial of service (session storage consumption) via a series of authentication attempts with long, non-existent usernames.