CVE-2020-8492
Public on 2020-01-30
Modified on 2024-01-17
Description
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.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | python | 2020-06-01 | ALAS2-2020-1432 | Fixed |
| Amazon Linux 2 - Core | python | 2020-07-31 | ALAS2-2020-1471 | Fixed |
| Amazon Linux 1 | python26 | 2020-07-27 | ALAS-2020-1406 | Fixed |
| Amazon Linux 1 | python27 | 2020-07-27 | ALAS-2020-1407 | Fixed |
| Amazon Linux 2 - Core | python3 | 2020-07-31 | ALAS2-2020-1471 | Fixed |
| Amazon Linux 1 | python34 | 2020-07-27 | ALAS-2020-1407 | Fixed |
| Amazon Linux 1 | python35 | 2020-07-27 | ALAS-2020-1407 | Fixed |
| Amazon Linux 1 | python36 | 2020-07-27 | ALAS-2020-1407 | Fixed |
| Amazon Linux 1 | python38 | Not Affected | ||
| Amazon Linux 2 - Python3.8 Extra | python38 | 2023-08-21 | ALAS2PYTHON3.8-2023-006 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | CVSSv2 | 7.1 | AV:N/AC:M/Au:N/C:N/I:N/A:C |
| NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |