A denial of service vulnerability present in ActiveRecord's PostgreSQL adapter <7.0.4.1 and <6.1.7.1. When a value outside the range for a 64bit signed integer is provided to the PostgreSQL connection adapter, it will treat the target column type as numeric. Comparing integer values against numeric values can result in a slow sequential scan resulting in potential Denial of Service.
The product does not properly control the allocation and maintenance of a limited resource.
| Link | Tags |
|---|---|
| https://discuss.rubyonrails.org/t/cve-2022-44566-possible-denial-of-service-vulnerability-in-activerecords-postgresql-adapter/82119 | patch vendor advisory |
| https://code.jeremyevans.net/2022-11-01-forcing-sequential-scans-on-postgresql.html | mitigation third party advisory exploit |