VDB
CVE-2016-4423
CVE-2016-4423
PUBLISHED
CVSS 7.5 HIGH
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.
EPSS 1.86% · 77.8th percentile
Risk Scores
CVSS 3.0
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
1.86%
77.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | symfony | 0, 2.7.1+dfsg-1, 2.7.5+dfsg-1 |
Timeline
- Jun 1, 2016 CVE Published
- Jun 3, 2016 CVE Updated
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 21, 2022 EPSS Score
- Jul 12, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Oct 27, 2022 EPSS Score
- Dec 19, 2022 EPSS Score
- Feb 9, 2023 EPSS Score
- May 26, 2023 EPSS Score
- Jul 18, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2016-4423 third-party-advisory
- https://github.com/symfony/symfony/pull/18733 third-party-advisory
- https://symfony.com/blog/cve-2016-4423-large-username-storage-in-session third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2016-4423 third-party-advisory