UBUNTU-CVE-2016-4423

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Source
https://ubuntu.com/security/CVE-2016-4423
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4423.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2016-4423
Upstream
Published
2016-06-01T22:59:00Z
Modified
2025-09-08T16:43:44Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:16.04:LTS / symfony

Package

Name
symfony
Purl
pkg:deb/ubuntu/symfony@2.7.10-0ubuntu2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.7.1+dfsg-1
2.7.5+dfsg-1
2.7.9+dfsg-1
2.7.9+dfsg-1ubuntu2
2.7.10-0ubuntu2

Ecosystem specific 

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            "binary_name": "php-symfony-browser-kit"
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            "binary_version": "2.7.10-0ubuntu2",
            "binary_name": "php-symfony-class-loader"
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            "binary_version": "2.7.10-0ubuntu2",
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}