Symphony Denial of Service Via Overlong Usernames
The advisory, in context
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.
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
From 2.3.0 before 2.3.41
Fixed in 2.3.41
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.41"
}
],
"type": "ECOSYSTEM"
}
],
"versions": []
}From 2.4.0 before 2.7.13
Fixed in 2.7.13
58 explicitly affected versions
v2.4.0, v2.4.1, v2.4.10, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6, v2.4.7, v2.4.8, v2.4.9, v2.5.0, v2.5.0-BETA1, v2.5.0-BETA2, v2.5.0-RC1, v2.5.1, v2.5.10, v2.5.11, v2.5.12, v2.5.2, v2.5.3, v2.5.4, v2.5.5, v2.5.6, v2.5.7, v2.5.8, v2.5.9, v2.6.0, v2.6.0-BETA1, v2.6.0-BETA2, v2.6.1, v2.6.10, v2.6.11, v2.6.12, v2.6.13, v2.6.2, v2.6.3, v2.6.4, v2.6.5, v2.6.6, v2.6.7, v2.6.8, v2.6.9, v2.7.0, v2.7.0-BETA1, v2.7.0-BETA2, v2.7.1, v2.7.10, v2.7.11, v2.7.12, v2.7.2, v2.7.3, v2.7.4, v2.7.5, v2.7.6, v2.7.7, v2.7.8, v2.7.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.7.13"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v2.4.0",
"v2.4.1",
"v2.4.10",
"v2.4.2",
"v2.4.3",
"v2.4.4",
"v2.4.5",
"v2.4.6",
"v2.4.7",
"v2.4.8",
"v2.4.9",
"v2.5.0",
"v2.5.0-BETA1",
"v2.5.0-BETA2",
"v2.5.0-RC1",
"v2.5.1",
"v2.5.10",
"v2.5.11",
"v2.5.12",
"v2.5.2",
"v2.5.3",
"v2.5.4",
"v2.5.5",
"v2.5.6",
"v2.5.7",
"v2.5.8",
"v2.5.9",
"v2.6.0",
"v2.6.0-BETA1",
"v2.6.0-BETA2",
"v2.6.1",
"v2.6.10",
"v2.6.11",
"v2.6.12",
"v2.6.13",
"v2.6.2",
"v2.6.3",
"v2.6.4",
"v2.6.5",
"v2.6.6",
"v2.6.7",
"v2.6.8",
"v2.6.9",
"v2.7.0",
"v2.7.0-BETA1",
"v2.7.0-BETA2",
"v2.7.1",
"v2.7.10",
"v2.7.11",
"v2.7.12",
"v2.7.2",
"v2.7.3",
"v2.7.4",
"v2.7.5",
"v2.7.6",
"v2.7.7",
"v2.7.8",
"v2.7.9"
]
}From 2.8.0 before 2.8.6
Fixed in 2.8.6
6 explicitly affected versions
v2.8.0, v2.8.1, v2.8.2, v2.8.3, v2.8.4, v2.8.5
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v2.8.0",
"v2.8.1",
"v2.8.2",
"v2.8.3",
"v2.8.4",
"v2.8.5"
]
}From 3.0.0 before 3.0.6
Fixed in 3.0.6
6 explicitly affected versions
v3.0.0, v3.0.1, v3.0.2, v3.0.3, v3.0.4, v3.0.5
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v3.0.0",
"v3.0.1",
"v3.0.2",
"v3.0.3",
"v3.0.4",
"v3.0.5"
]
}From 2.3.0 before 2.3.41
Fixed in 2.3.41
41 explicitly affected versions
v2.3.0, v2.3.1, v2.3.10, v2.3.11, v2.3.12, v2.3.13, v2.3.14, v2.3.15, v2.3.16, v2.3.17, v2.3.18, v2.3.19, v2.3.2, v2.3.20, v2.3.21, v2.3.22, v2.3.23, v2.3.24, v2.3.25, v2.3.26, v2.3.27, v2.3.28, v2.3.29, v2.3.3, v2.3.30, v2.3.31, v2.3.32, v2.3.33, v2.3.34, v2.3.35, v2.3.36, v2.3.37, v2.3.38, v2.3.39, v2.3.4, v2.3.40, v2.3.5, v2.3.6, v2.3.7, v2.3.8, v2.3.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.41"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v2.3.0",
"v2.3.1",
"v2.3.10",
"v2.3.11",
"v2.3.12",
"v2.3.13",
"v2.3.14",
"v2.3.15",
"v2.3.16",
"v2.3.17",
"v2.3.18",
"v2.3.19",
"v2.3.2",
"v2.3.20",
"v2.3.21",
"v2.3.22",
"v2.3.23",
"v2.3.24",
"v2.3.25",
"v2.3.26",
"v2.3.27",
"v2.3.28",
"v2.3.29",
"v2.3.3",
"v2.3.30",
"v2.3.31",
"v2.3.32",
"v2.3.33",
"v2.3.34",
"v2.3.35",
"v2.3.36",
"v2.3.37",
"v2.3.38",
"v2.3.39",
"v2.3.4",
"v2.3.40",
"v2.3.5",
"v2.3.6",
"v2.3.7",
"v2.3.8",
"v2.3.9"
]
}From 2.4.0 before 2.7.13
Fixed in 2.7.13
58 explicitly affected versions
v2.4.0, v2.4.1, v2.4.10, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6, v2.4.7, v2.4.8, v2.4.9, v2.5.0, v2.5.0-BETA1, v2.5.0-BETA2, v2.5.0-RC1, v2.5.1, v2.5.10, v2.5.11, v2.5.12, v2.5.2, v2.5.3, v2.5.4, v2.5.5, v2.5.6, v2.5.7, v2.5.8, v2.5.9, v2.6.0, v2.6.0-BETA1, v2.6.0-BETA2, v2.6.1, v2.6.10, v2.6.11, v2.6.12, v2.6.13, v2.6.2, v2.6.3, v2.6.4, v2.6.5, v2.6.6, v2.6.7, v2.6.8, v2.6.9, v2.7.0, v2.7.0-BETA1, v2.7.0-BETA2, v2.7.1, v2.7.10, v2.7.11, v2.7.12, v2.7.2, v2.7.3, v2.7.4, v2.7.5, v2.7.6, v2.7.7, v2.7.8, v2.7.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.7.13"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v2.4.0",
"v2.4.1",
"v2.4.10",
"v2.4.2",
"v2.4.3",
"v2.4.4",
"v2.4.5",
"v2.4.6",
"v2.4.7",
"v2.4.8",
"v2.4.9",
"v2.5.0",
"v2.5.0-BETA1",
"v2.5.0-BETA2",
"v2.5.0-RC1",
"v2.5.1",
"v2.5.10",
"v2.5.11",
"v2.5.12",
"v2.5.2",
"v2.5.3",
"v2.5.4",
"v2.5.5",
"v2.5.6",
"v2.5.7",
"v2.5.8",
"v2.5.9",
"v2.6.0",
"v2.6.0-BETA1",
"v2.6.0-BETA2",
"v2.6.1",
"v2.6.10",
"v2.6.11",
"v2.6.12",
"v2.6.13",
"v2.6.2",
"v2.6.3",
"v2.6.4",
"v2.6.5",
"v2.6.6",
"v2.6.7",
"v2.6.8",
"v2.6.9",
"v2.7.0",
"v2.7.0-BETA1",
"v2.7.0-BETA2",
"v2.7.1",
"v2.7.10",
"v2.7.11",
"v2.7.12",
"v2.7.2",
"v2.7.3",
"v2.7.4",
"v2.7.5",
"v2.7.6",
"v2.7.7",
"v2.7.8",
"v2.7.9"
]
}From 2.8.0 before 2.8.6
Fixed in 2.8.6
6 explicitly affected versions
v2.8.0, v2.8.1, v2.8.2, v2.8.3, v2.8.4, v2.8.5
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v2.8.0",
"v2.8.1",
"v2.8.2",
"v2.8.3",
"v2.8.4",
"v2.8.5"
]
}From 3.0.0 before 3.0.6
Fixed in 3.0.6
6 explicitly affected versions
v3.0.0, v3.0.1, v3.0.2, v3.0.3, v3.0.4, v3.0.5
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v3.0.0",
"v3.0.1",
"v3.0.2",
"v3.0.3",
"v3.0.4",
"v3.0.5"
]
}From 2.3.0 before 2.3.41
Fixed in 2.3.41
41 explicitly affected versions
v2.3.0, v2.3.1, v2.3.10, v2.3.11, v2.3.12, v2.3.13, v2.3.14, v2.3.15, v2.3.16, v2.3.17, v2.3.18, v2.3.19, v2.3.2, v2.3.20, v2.3.21, v2.3.22, v2.3.23, v2.3.24, v2.3.25, v2.3.26, v2.3.27, v2.3.28, v2.3.29, v2.3.3, v2.3.30, v2.3.31, v2.3.32, v2.3.33, v2.3.34, v2.3.35, v2.3.36, v2.3.37, v2.3.38, v2.3.39, v2.3.4, v2.3.40, v2.3.5, v2.3.6, v2.3.7, v2.3.8, v2.3.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.41"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v2.3.0",
"v2.3.1",
"v2.3.10",
"v2.3.11",
"v2.3.12",
"v2.3.13",
"v2.3.14",
"v2.3.15",
"v2.3.16",
"v2.3.17",
"v2.3.18",
"v2.3.19",
"v2.3.2",
"v2.3.20",
"v2.3.21",
"v2.3.22",
"v2.3.23",
"v2.3.24",
"v2.3.25",
"v2.3.26",
"v2.3.27",
"v2.3.28",
"v2.3.29",
"v2.3.3",
"v2.3.30",
"v2.3.31",
"v2.3.32",
"v2.3.33",
"v2.3.34",
"v2.3.35",
"v2.3.36",
"v2.3.37",
"v2.3.38",
"v2.3.39",
"v2.3.4",
"v2.3.40",
"v2.3.5",
"v2.3.6",
"v2.3.7",
"v2.3.8",
"v2.3.9"
]
}From 2.4.0 before 2.7.13
Fixed in 2.7.13
58 explicitly affected versions
v2.4.0, v2.4.1, v2.4.10, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6, v2.4.7, v2.4.8, v2.4.9, v2.5.0, v2.5.0-BETA1, v2.5.0-BETA2, v2.5.0-RC1, v2.5.1, v2.5.10, v2.5.11, v2.5.12, v2.5.2, v2.5.3, v2.5.4, v2.5.5, v2.5.6, v2.5.7, v2.5.8, v2.5.9, v2.6.0, v2.6.0-BETA1, v2.6.0-BETA2, v2.6.1, v2.6.10, v2.6.11, v2.6.12, v2.6.13, v2.6.2, v2.6.3, v2.6.4, v2.6.5, v2.6.6, v2.6.7, v2.6.8, v2.6.9, v2.7.0, v2.7.0-BETA1, v2.7.0-BETA2, v2.7.1, v2.7.10, v2.7.11, v2.7.12, v2.7.2, v2.7.3, v2.7.4, v2.7.5, v2.7.6, v2.7.7, v2.7.8, v2.7.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.7.13"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v2.4.0",
"v2.4.1",
"v2.4.10",
"v2.4.2",
"v2.4.3",
"v2.4.4",
"v2.4.5",
"v2.4.6",
"v2.4.7",
"v2.4.8",
"v2.4.9",
"v2.5.0",
"v2.5.0-BETA1",
"v2.5.0-BETA2",
"v2.5.0-RC1",
"v2.5.1",
"v2.5.10",
"v2.5.11",
"v2.5.12",
"v2.5.2",
"v2.5.3",
"v2.5.4",
"v2.5.5",
"v2.5.6",
"v2.5.7",
"v2.5.8",
"v2.5.9",
"v2.6.0",
"v2.6.0-BETA1",
"v2.6.0-BETA2",
"v2.6.1",
"v2.6.10",
"v2.6.11",
"v2.6.12",
"v2.6.13",
"v2.6.2",
"v2.6.3",
"v2.6.4",
"v2.6.5",
"v2.6.6",
"v2.6.7",
"v2.6.8",
"v2.6.9",
"v2.7.0",
"v2.7.0-BETA1",
"v2.7.0-BETA2",
"v2.7.1",
"v2.7.10",
"v2.7.11",
"v2.7.12",
"v2.7.2",
"v2.7.3",
"v2.7.4",
"v2.7.5",
"v2.7.6",
"v2.7.7",
"v2.7.8",
"v2.7.9"
]
}From 2.8.0 before 2.8.6
Fixed in 2.8.6
6 explicitly affected versions
v2.8.0, v2.8.1, v2.8.2, v2.8.3, v2.8.4, v2.8.5
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v2.8.0",
"v2.8.1",
"v2.8.2",
"v2.8.3",
"v2.8.4",
"v2.8.5"
]
}From 3.0.0 before 3.0.6
Fixed in 3.0.6
6 explicitly affected versions
v3.0.0, v3.0.1, v3.0.2, v3.0.3, v3.0.4, v3.0.5
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v3.0.0",
"v3.0.1",
"v3.0.2",
"v3.0.3",
"v3.0.4",
"v3.0.5"
]
}References
- https://nvd.nist.gov/vuln/detail/CVE-2016-4423
- https://github.com/symfony/symfony/pull/18733
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2016-4423.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2016-4423.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2016-4423.yaml
- https://github.com/symfony/symfony
- https://symfony.com/blog/cve-2016-4423-large-username-storage-in-session
- https://symfony.com/cve-2016-4423
- http://www.debian.org/security/2016/dsa-3588