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| author | Mariusz Felisiak <felisiak.mariusz@gmail.com> | 2023-08-22 08:53:03 +0200 |
|---|---|---|
| committer | Mariusz Felisiak <felisiak.mariusz@gmail.com> | 2023-09-04 11:58:37 +0200 |
| commit | 3f41d6d62929dfe53eda8109b3b836f26645bdce (patch) | |
| tree | a221032a51e25559ef8266a861fc8a8447078a78 /django/utils | |
| parent | 048d75aeb1e2b1c08b1b9ec359397f00aec1b57d (diff) | |
Fixed CVE-2023-41164 -- Fixed potential DoS in django.utils.encoding.uri_to_iri().
Thanks MProgrammer (https://hackerone.com/mprogrammer) for the report.
Co-authored-by: nessita <124304+nessita@users.noreply.github.com>
Diffstat (limited to 'django/utils')
| -rw-r--r-- | django/utils/encoding.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/django/utils/encoding.py b/django/utils/encoding.py index 5b618e74a3..5986993759 100644 --- a/django/utils/encoding.py +++ b/django/utils/encoding.py @@ -220,6 +220,7 @@ def repercent_broken_unicode(path): repercent-encode any octet produced that is not part of a strictly legal UTF-8 octet sequence. """ + changed_parts = [] while True: try: path.decode() @@ -227,9 +228,10 @@ def repercent_broken_unicode(path): # CVE-2019-14235: A recursion shouldn't be used since the exception # handling uses massive amounts of memory repercent = quote(path[e.start : e.end], safe=b"/#%[]=:;$&()+,!?*@'~") - path = path[: e.start] + repercent.encode() + path[e.end :] + changed_parts.append(path[: e.start] + repercent.encode()) + path = path[e.end :] else: - return path + return b"".join(changed_parts) + path def filepath_to_uri(path): |