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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 12:14:21 +0200 |
| commit | ba00bc5ec6a7eff5e08be438f7b5b0e9574e8ff0 (patch) | |
| tree | 4b93acd6125b01d60e39c795cbcbd206d26fe21b /django | |
| parent | 52533346d221fa57b676056418c0e0d9342a2d67 (diff) | |
[4.1.x] 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')
| -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 360eb91ed5..5eb14d0933 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): |