Описание
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| python3.9 | fixed | 3.9.7-1 | package | |
| python3.7 | removed | package | ||
| python3.5 | removed | package | ||
| python2.7 | removed | package | ||
| python2.7 | ignored | bullseye | package | |
| pypy3 | fixed | 7.3.5+dfsg-2 | package | |
| pypy3 | no-dsa | buster | package |
Примечания
https://bugs.python.org/issue43075
https://github.com/python/cpython/pull/24391
https://github.com/python/cpython/commit/7215d1ae25525c92b026166f9d5cac85fb1defe1 (master)
https://github.com/python/cpython/commit/a21d4fbd549ec9685068a113660553d7f80d9b09 (3.9.5)
https://github.com/python/cpython/commit/e7654b6046090914a8323931ed759a94a5f85d60 (3.8.10)
https://github.com/python/cpython/commit/ada14995870abddc277addf57dd690a2af04c2da (3.7.11)
https://github.com/python/cpython/commit/3fbe96123aeb66664fa547a8f6022efa2dc8788f (3.6.14)
https://github.com/pypy/pypy/commit/d670377acb9e9217c4c21164428ba4b528e5b389 (release-pypy3.7-v7.3.5rc2)
Связанные уязвимости
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.