CVE-2024-3220
There is a defect in the CPython standard library module “mimetypes” where on Windows the default list of known file locations are writable meaning other users…
Impact
There is a defect in the CPython standard library module “mimetypes” where on Windows the default list of known file locations are writable meaning other users can create invalid files to cause MemoryError to be raised on Python runtime startup or have file extensions be interpreted as the incorrect file type. This defect is caused by the default locations of Linux and macOS platforms (such as “/etc/mime.types”) also being used on Windows, where they are user-writable locations (“C:\etc\mime.types”). To work-around this issue a user can call mimetypes.init() with an empty list (“[]”) on Windows platforms to avoid using the default list of known file locations.
Affected packages
This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/python/cpython/commit/04a29bf8f9ff8526cd96cb7368400173303a390a
- https://github.com/python/cpython/commit/2f00690fd5a75305e02c99628a41439179266f29
- https://github.com/python/cpython/commit/35dd324f6e30735162a68cde84bb04a169004325
- https://github.com/python/cpython/commit/5550519259656cbb8eeac09e3dbc0d5c248a4dea
- https://github.com/python/cpython/commit/76f4555c4ff10f5dda58d6528c17787df41e256c
- https://github.com/python/cpython/commit/8d4286a3f41d36f42c4b4cf5c4451a5a8c23fe87
- https://github.com/python/cpython/issues/159428
- https://mail.python.org/archives/list/security-announce@python.org/thread/CDXW34ND2LSAOYAR5N6UNONP4ZBX4D6R/
- http://www.openwall.com/lists/oss-security/2025/02/14/8
- https://security.netapp.com/advisory/ntap-20250314-0001/