Rapid7 Vulnerability & Exploit Database

Alpine Linux: CVE-2020-8492: python3 urllib basic auth regex denial of service

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Alpine Linux: CVE-2020-8492: python3 urllib basic auth regex denial of service

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
01/30/2020
Created
01/05/2021
Added
01/04/2021
Modified
01/04/2021

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.

Solution(s)

  • alpine-linux-upgrade-python3

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