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.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-3588-1 symfony security update
EUVD EUVD EUVD-2022-5580 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.
Github GHSA Github GHSA GHSA-whgv-8cg3-7hcm Symphony Denial of Service Via Overlong Usernames
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T00:32:24.596Z

Reserved: 2016-05-02T00:00:00

Link: CVE-2016-4423

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-06-01T22:59:02.457

Modified: 2025-04-12T10:46:40.837

Link: CVE-2016-4423

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses