Out of memory error when submitting the dataset form with a specially-crafted field

Impact

When submitting a POST request to the /dataset/new endpoint (including either the auth cookie or the Authorization header) with a specially-crafted field, an attacker can create an out-of-memory error in the hosting server.

To trigger this error the user needs to have permissions to create or edit datasets.

Patches

This vulnerability has been patched in CKAN 2.10.3 and 2.9.10