CVE-2016-4423
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Sensiolabs Symfony
PublishedJun 1, 2016
First seenJun 1, 2016
How to fix
Update
- symfony/security-http2.3.41, 2.7.13, 2.8.6, 3.0.6 or later
- symfony/security2.3.41, 2.7.13, 2.8.6, 3.0.6 or later
- symfony/symfony2.3.41, 2.7.13, 2.8.6, 3.0.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sensiolabs symfony | v ≤ 2.3.40, 2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.7.4, 2.7.5, 2.7.6, 2.7.7, 2.7.8, 2.7.9, 2.7.10, 2.7.11, 2.7.12, 2.8.0, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.8.5, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5 | — |
| debian debian_linux | 8.0 | — |
| symfony/security-httpPackagist | 2.3.0 ≤ v < 2.3.41, 2.4.0 ≤ v < 2.7.13, 2.8.0 ≤ v < 2.8.6, 3.0.0 ≤ v < 3.0.6 | 2.3.41, 2.7.13, 2.8.6, 3.0.6 |
| symfony/securityPackagist | 2.3.0 ≤ v < 2.3.41, 2.4.0 ≤ v < 2.7.13, 2.8.0 ≤ v < 2.8.6, 3.0.0 ≤ v < 3.0.6 | 2.3.41, 2.7.13, 2.8.6, 3.0.6 |
| symfony/symfonyPackagist | 2.3.0 ≤ v < 2.3.41, 2.4.0 ≤ v < 2.7.13, 2.8.0 ≤ v < 2.8.6, 3.0.0 ≤ v < 3.0.6 | 2.3.41, 2.7.13, 2.8.6, 3.0.6 |
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