CVE-2016-4423

The attemptAuthentication function in Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php in Symfony before 2.3.41, 2.7.x before…

published June 1, 2016

CVSS
—
EPSS
2%
Percentile
79.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01862 · 79.0th percentile
Published
2016-06-01T22:00Z
EPSS history
Timeline
  • 01 JUN 22:00Z
    The attemptAuthentication function in Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php in Symfony before 2.3.41, 2.7.x before…
    cvelistv5