CVE-2018-11386: Insufficient Session Expiration

June 13, 2018 (updated March 29, 2019)

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.

References

symfony.com/cve-2018-11386

Code Behaviors & Features

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