summaryrefslogtreecommitdiff
path: root/docs/releases
diff options
context:
space:
mode:
authorMariusz Felisiak <felisiak.mariusz@gmail.com>2023-10-17 11:48:32 +0200
committerMariusz Felisiak <felisiak.mariusz@gmail.com>2023-11-01 06:10:30 +0100
commit05ba4130ee878c4f520b5d34bb11eaad794623be (patch)
tree1d11111ee476d411c8fc62bd6da6e9376d2f1d4e /docs/releases
parent40b3975e7d3e1464a733c69171ad7d38f8814280 (diff)
Fixed CVE-2023-46695 -- Fixed potential DoS in UsernameField on Windows.
Thanks MProgrammer (https://hackerone.com/mprogrammer) for the report.
Diffstat (limited to 'docs/releases')
-rw-r--r--docs/releases/3.2.23.txt12
-rw-r--r--docs/releases/4.1.13.txt12
-rw-r--r--docs/releases/4.2.7.txt12
3 files changed, 34 insertions, 2 deletions
diff --git a/docs/releases/3.2.23.txt b/docs/releases/3.2.23.txt
index 0d71a0aa71..ba23d11a71 100644
--- a/docs/releases/3.2.23.txt
+++ b/docs/releases/3.2.23.txt
@@ -6,4 +6,14 @@ Django 3.2.23 release notes
Django 3.2.23 fixes a security issue with severity "moderate" in 3.2.22.
-...
+CVE-2023-46695: Potential denial of service vulnerability in ``UsernameField`` on Windows
+=========================================================================================
+
+The :func:`NFKC normalization <python:unicodedata.normalize>` is slow on
+Windows. As a consequence, ``django.contrib.auth.forms.UsernameField`` was
+subject to a potential denial of service attack via certain inputs with a very
+large number of Unicode characters.
+
+In order to avoid the vulnerability, invalid values longer than
+``UsernameField.max_length`` are no longer normalized, since they cannot pass
+validation anyway.
diff --git a/docs/releases/4.1.13.txt b/docs/releases/4.1.13.txt
index c2fb5afcd3..01ad5dda62 100644
--- a/docs/releases/4.1.13.txt
+++ b/docs/releases/4.1.13.txt
@@ -6,4 +6,14 @@ Django 4.1.13 release notes
Django 4.1.13 fixes a security issue with severity "moderate" in 4.1.12.
-...
+CVE-2023-46695: Potential denial of service vulnerability in ``UsernameField`` on Windows
+=========================================================================================
+
+The :func:`NFKC normalization <python:unicodedata.normalize>` is slow on
+Windows. As a consequence, ``django.contrib.auth.forms.UsernameField`` was
+subject to a potential denial of service attack via certain inputs with a very
+large number of Unicode characters.
+
+In order to avoid the vulnerability, invalid values longer than
+``UsernameField.max_length`` are no longer normalized, since they cannot pass
+validation anyway.
diff --git a/docs/releases/4.2.7.txt b/docs/releases/4.2.7.txt
index 0b1228c9f6..13d902475b 100644
--- a/docs/releases/4.2.7.txt
+++ b/docs/releases/4.2.7.txt
@@ -7,6 +7,18 @@ Django 4.2.7 release notes
Django 4.2.7 fixes a security issue with severity "moderate" and several bugs
in 4.2.6.
+CVE-2023-46695: Potential denial of service vulnerability in ``UsernameField`` on Windows
+=========================================================================================
+
+The :func:`NFKC normalization <python:unicodedata.normalize>` is slow on
+Windows. As a consequence, ``django.contrib.auth.forms.UsernameField`` was
+subject to a potential denial of service attack via certain inputs with a very
+large number of Unicode characters.
+
+In order to avoid the vulnerability, invalid values longer than
+``UsernameField.max_length`` are no longer normalized, since they cannot pass
+validation anyway.
+
Bugfixes
========