Vulnerability Description
django-filter is a generic system for filtering Django QuerySets based on user selections. In django-filter before version 2.4.0, 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. Version 2.4.0+ applies a `MaxValueValidator` with a a default `limit_value` of 1e50 to the form field used by `NumberFilter` instances. In addition, `NumberFilter` implements the new `get_max_validator()` which should return a configured validator instance to customise the limit, or else `None` to disable the additional validation. Users may manually apply an equivalent validator if they are not able to upgrade.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Django-Filter Project | Django-Filter | < 2.4.0 |
| Fedoraproject | Fedora | 34 |
Related Weaknesses (CWE)
References
- https://github.com/carltongibson/django-filter/commit/340cf7a23a2b3dcd7183f6a0d6PatchThird Party Advisory
- https://github.com/carltongibson/django-filter/releases/tag/2.4.0Release NotesThird Party Advisory
- https://github.com/carltongibson/django-filter/security/advisories/GHSA-x7gm-rfgThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://pypi.org/project/django-filter/ProductThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210604-0010/Third Party Advisory
- https://github.com/carltongibson/django-filter/commit/340cf7a23a2b3dcd7183f6a0d6PatchThird Party Advisory
- https://github.com/carltongibson/django-filter/releases/tag/2.4.0Release NotesThird Party Advisory
- https://github.com/carltongibson/django-filter/security/advisories/GHSA-x7gm-rfgThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://pypi.org/project/django-filter/ProductThird Party Advisory
FAQ
What is CVE-2020-15225?
CVE-2020-15225 is a vulnerability with a CVSS score of 7.5 (HIGH). django-filter is a generic system for filtering Django QuerySets based on user selections. In django-filter before version 2.4.0, automatically generated `NumberFilter` instances, whose value was late...
How severe is CVE-2020-15225?
CVE-2020-15225 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15225?
Check the references section above for vendor advisories and patch information. Affected products include: Django-Filter Project Django-Filter, Fedoraproject Fedora.