diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/ref/forms/fields.txt | 13 | ||||
| -rw-r--r-- | docs/releases/4.2.18.txt | 12 |
2 files changed, 23 insertions, 2 deletions
diff --git a/docs/ref/forms/fields.txt b/docs/ref/forms/fields.txt index 1a7274e0d1..76b4587e21 100644 --- a/docs/ref/forms/fields.txt +++ b/docs/ref/forms/fields.txt @@ -719,7 +719,7 @@ For each field, we describe the default widget used if you don't specify * Empty value: ``''`` (an empty string) * Normalizes to: A string. IPv6 addresses are normalized as described below. * Validates that the given value is a valid IP address. - * Error message keys: ``required``, ``invalid`` + * Error message keys: ``required``, ``invalid``, ``max_length`` The IPv6 address normalization follows :rfc:`4291#section-2.2` section 2.2, including using the IPv4 format suggested in paragraph 3 of that section, like @@ -727,7 +727,7 @@ For each field, we describe the default widget used if you don't specify ``2001::1``, and ``::ffff:0a0a:0a0a`` to ``::ffff:10.10.10.10``. All characters are converted to lowercase. - Takes two optional arguments: + Takes three optional arguments: .. attribute:: protocol @@ -742,6 +742,15 @@ For each field, we describe the default widget used if you don't specify ``192.0.2.1``. Default is disabled. Can only be used when ``protocol`` is set to ``'both'``. + .. attribute:: max_length + + Defaults to 39, and behaves the same way as it does for + :class:`CharField`. + + .. versionchanged:: 4.2.18 + + The default value for ``max_length`` was set to 39 characters. + ``ImageField`` -------------- diff --git a/docs/releases/4.2.18.txt b/docs/releases/4.2.18.txt index ae0c4e3334..fef91d9150 100644 --- a/docs/releases/4.2.18.txt +++ b/docs/releases/4.2.18.txt @@ -5,3 +5,15 @@ Django 4.2.18 release notes *January 14, 2025* Django 4.2.18 fixes a security issue with severity "moderate" in 4.2.17. + +CVE-2024-56374: Potential denial-of-service vulnerability in IPv6 validation +============================================================================ + +Lack of upper bound limit enforcement in strings passed when performing IPv6 +validation could lead to a potential denial-of-service attack. The undocumented +and private functions ``clean_ipv6_address`` and ``is_valid_ipv6_address`` were +vulnerable, as was the :class:`django.forms.GenericIPAddressField` form field, +which has now been updated to define a ``max_length`` of 39 characters. + +The :class:`django.db.models.GenericIPAddressField` model field was not +affected. |