CVE-2016-4423

State: Published
Severity: Not scored
Published: Jun 1, 2016
Updated: Aug 6, 2024
Reserved: May 2, 2016

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://symfony.com/blog/cve-2016-4423-large-username-storage-in-session
https://github.com/symfony/symfony/pull/18733
DSA-3588vendor-advisory

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