CVE-2018-11386
Description
An issue was discovered in the HttpFoundation component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. The PDOSessionHandler class allows storing sessions on a PDO connection. Under some configurations and with a well-crafted payload, it was possible to do a denial of service on a Symfony application without too much resources.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 3.4.12+dfsg-1 |
| sid | Fixed | 3.4.12+dfsg-1 |
| forky | Fixed | 3.4.12+dfsg-1 |
| bullseye | Fixed | 3.4.12+dfsg-1 |
| bookworm | Fixed | 3.4.12+dfsg-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | symfony/symfony | >=2.7.0,<2.7.48 | 2.7.48 |
| Packagist | symfony/symfony | >=2.8.0,<2.8.41 | 2.8.41 |
| Packagist | symfony/symfony | >=3.3.0,<3.3.17 | 3.3.17 |
| Packagist | symfony/symfony | >=3.4.0,<3.4.11 | 3.4.11 |
| Packagist | symfony/symfony | >=4.0.0,<4.0.11 | 4.0.11 |
| Packagist | symfony/http-foundation | >=2.7.0,<2.7.48 | 2.7.48 |
| Packagist | symfony/http-foundation | >=2.8.0,<2.8.41 | 2.8.41 |
| Packagist | symfony/http-foundation | >=3.3.0,<3.3.17 | 3.3.17 |
| Packagist | symfony/http-foundation | >=3.4.0,<3.4.11 | 3.4.11 |
| Packagist | symfony/http-foundation | >=4.0.0,<4.0.11 | 4.0.11 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-11386
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2018-11386.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-11386.yaml
- https://github.com/symfony/symfony
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH
- https://symfony.com/blog/cve-2018-11386-denial-of-service-when-using-pdosessionhandler
- https://symfony.com/cve-2018-11386
- https://www.debian.org/security/2018/dsa-4262
- https://security-tracker.debian.org/tracker/CVE-2018-11386
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.