Описание
`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| python-multipart | fixed | 0.0.9-1 | package | |
| python-multipart | no-dsa | bookworm | package | |
| python-multipart | no-dsa | bullseye | package |
Примечания
Original report at fastapi: https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389
But the fix is within python-multipart:
https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4 (0.0.7)
https://github.com/Kludex/python-multipart/pull/75
EPSS
Связанные уязвимости
`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.
`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.
python-multipart vulnerable to Content-Type Header ReDoS
Уязвимость потокового многокомпонентного парсера python-multipart, связанная с неэффективной сложностью регулярных выражений, позволяющая нарушителю вызвать отказ в обслуживании
EPSS