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This PR contains the following updates:
>=2.0.0,<2.1
->>=2.4.0,<2.5
GitHub Vulnerability Alerts
CVE-2020-15225
Impact
Automatically generated
NumberFilter
instances, whose value was later converted to an integer, were subject to potential DoS from maliciously input using exponential format with sufficiently large exponents.Patches
Version 2.4.0+ applies a
MaxValueValidator
with a a defaultlimit_value
of 1e50 to the form field used byNumberFilter
instances.In addition,
NumberFilter
implements the newget_max_validator()
which should return a configured validator instance to customise the limit, or elseNone
to disable the additional validation.Workarounds
Users may manually apply an equivalent validator if they are not able to upgrade.
For more information
If you have any questions or comments about this advisory:
Thanks to Marcin Waraksa for the report.
Release Notes
carltongibson/django-filter (django-filter)
### [`v2.4.0`](https://togithub.com/carltongibson/django-filter/blob/HEAD/CHANGES.rst#Version-240-2020-9-27) [Compare Source](https://togithub.com/carltongibson/django-filter/compare/2.3.0...2.4.0) - SECURITY: Added a `MaxValueValidator` to the form field for `NumberFilter`. This prevents a potential DoS attack if numbers with very large exponents were subsequently converted to integers. The default limit value for the validator is `1e50`. The new `NumberFilter.get_max_validator()` allows customising the used validator, and may return `None` to disable the validation entirely. - Added testing against Django 3.1 and Python 3.9. In addition tests against Django main development branch are now required to pass. ### [`v2.3.0`](https://togithub.com/carltongibson/django-filter/blob/HEAD/CHANGES.rst#Version-230-2020-6-5) [Compare Source](https://togithub.com/carltongibson/django-filter/compare/2.2.0...2.3.0) - Fixed import of FieldDoesNotExist. ([#1127](https://togithub.com/carltongibson/django-filter/issues/1127)) - Added testing against Django 3.0. ([#1125](https://togithub.com/carltongibson/django-filter/issues/1125)) - Declared support for, and added testing against, Python 3.8. ([#1138](https://togithub.com/carltongibson/django-filter/issues/1138)) - Fix filterset multiple inheritance bug ([#1131](https://togithub.com/carltongibson/django-filter/issues/1131)) - Allowed customising default lookup expression. ([#1129](https://togithub.com/carltongibson/django-filter/issues/1129)) - Drop Django 2.1 and below ([#1180](https://togithub.com/carltongibson/django-filter/issues/1180)) - Fixed IsoDateTimeRangeFieldTests for Django 3.1 - Require tests to pass against Django `master`. ### [`v2.2.0`](https://togithub.com/carltongibson/django-filter/releases/tag/2.2.0): Version 2.2 [Compare Source](https://togithub.com/carltongibson/django-filter/compare/2.1.0...2.2.0) Highlights: - Added `DjangoFilterBackend.get_schema_operation_parameters()` for DRF 3.10+ OpenAPI schema generation. ([#1086](https://togithub.com/carltongibson/django-filter/issues/1086)) - Added `lookup_expr` to `MultipleChoiceFilter` ([#1054](https://togithub.com/carltongibson/django-filter/issues/1054)) - Dropped support for EOL Python 3.4 ### [`v2.1.0`](https://togithub.com/carltongibson/django-filter/releases/tag/2.1.0): Version 2.1.0 [Compare Source](https://togithub.com/carltongibson/django-filter/compare/2.0.0...2.1.0) - Fixed a regression in `FilterView` introduced in 2.0. An empty `QuerySet` was incorrectly used whenever the `FilterSet` was unbound (i.e. when there were no `GET` parameters). The correct, pre-2.0 behaviour is now restored. A workaround was to set `strict=False` on the `FilterSet`. This is no longer necessary, so you may restore `strict` behaviour as desired. - Added `IsoDateTimeFromToRangeFilter`. Allows From-To filtering using ISO-8601 formatted dates.Configuration
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