CVE-2016-4423
Published: 1 June 2016
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.
Priority
Status
Package | Release | Status |
---|---|---|
symfony Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
groovy |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
jammy |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
xenial |
Needed
|
|
kinetic |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
artful |
Ignored
(end of life)
|
|
bionic |
Not vulnerable
(3.4.6+dfsg-1)
|
|
cosmic |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
disco |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
eoan |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
focal |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
hirsute |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
lunar |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(2.8.6+dfsg-1)
|
|
wily |
Ignored
(end of life)
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Ignored
(end of life)
|
|
mantic |
Not vulnerable
(3.4.15+dfsg-2ubuntu4)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |