CVE-2020-8492

Public on 2020-06-01
Modified on 2020-08-05
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
6.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 python 2020-07-31 19:22 ALAS2-2020-1471
Amazon Linux 2 python 2020-06-01 22:38 ALAS2-2020-1432
Amazon Linux 2 python3 2020-07-31 19:22 ALAS2-2020-1471
Amazon Linux 2 python 2020-07-31 19:22 ALAS2-2020-1471
Amazon Linux 2 python 2020-06-01 22:38 ALAS2-2020-1432
Amazon Linux 1 python26 2020-07-27 23:54 ALAS-2020-1406
Amazon Linux 1 python27 2020-07-27 23:54 ALAS-2020-1407
Amazon Linux 1 python34 2020-07-27 23:54 ALAS-2020-1407
Amazon Linux 1 python35 2020-07-27 23:54 ALAS-2020-1407
Amazon Linux 1 python36 2020-07-27 23:54 ALAS-2020-1407

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