Описание
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| python3.8 | fixed | 3.8.3~rc1-1 | package | |
| python3.7 | removed | package | ||
| python3.7 | fixed | 3.7.3-2+deb10u2 | buster | package |
| python3.5 | removed | package | ||
| python3.4 | removed | package | ||
| python3.4 | postponed | jessie | package | |
| python2.7 | fixed | 2.7.18-2 | package | |
| python2.7 | no-dsa | jessie | package |
Примечания
https://bugs.python.org/issue39503
https://github.com/python/cpython/pull/18284
https://python-security.readthedocs.io/vuln/urllib-basic-auth-regex.html
https://github.com/python/cpython/commit/0b297d4ff1c0e4480ad33acae793fbaf4bf015b4 (master)
https://github.com/python/cpython/commit/ea9e240aa02372440be8024acb110371f69c9d41 (3.8-branch)
https://github.com/python/cpython/commit/b57a73694e26e8b2391731b5ee0b1be59437388e (3.7-branch)
https://github.com/python/cpython/commit/69cdeeb93e0830004a495ed854022425b93b3f3e (3.6-branch)
Связанные уязвимости
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.