CVEvulnerability

CVE-2020-8492

6.5 MEDIUM Published 2020-01-30 Modified 2026-10-14 Official page ↗
Status
Modified
Published
2020-01-30
Last modified
2026-10-14
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
7.1 HIGH — AV:N/AC:M/Au:N/C:N/I:N/A:C
Weaknesses
CWE-400

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.

Affected configurations

• python python (>= 2.7.0 <= 2.7.17) • python python (>= 3.5.0 <= 3.5.9) • python python (>= 3.6.0 <= 3.6.10) • python python (>= 3.7.0 <= 3.7.6) • python python (>= 3.8.0 <= 3.8.1) • opensuse leap 15.1 • canonical ubuntu linux 12.04 • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 19.10 • canonical ubuntu linux 20.04 • fedoraproject fedora 31 • fedoraproject fedora 32 • debian debian linux 9.0

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References