CVE-2019-16789 – waitress

Package

Manager: pip
Name: waitress
Vulnerable Version: >=0 <1.4.2

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N

EPSS: 0.0035 pctl0.56755

Details

HTTP Request Smuggling in Waitress: Invalid whitespace characters in headers (Follow-up) ### Impact The patches introduced to fix https://github.com/Pylons/waitress/security/advisories/GHSA-m5ff-3wj3-8ph4 were not complete and still would allow an attacker to smuggle requests/split a HTTP request with invalid data. This updates the existing CVE with ID: CVE-2019-16789 ### Patches Waitress version 1.4.2 has been updated to now validate HTTP headers better to avoid the issue, completely fixing all known issues with whitespace. ### Workarounds There are no work-arounds, upgrading to Waitress 1.4.2 is highly recommended. ### References See https://github.com/Pylons/waitress/security/advisories/GHSA-m5ff-3wj3-8ph4 for more information on the security issue. ### For more information If you have any questions or comments about this advisory: * open an issue at https://github.com/Pylons/waitress/issues (if not sensitive or security related) * email the Pylons Security mailing list: pylons-project-security@googlegroups.com (if security related)

Metadata

Created: 2020-01-06T18:44:21Z
Modified: 2024-11-19T13:58:27Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/01/GHSA-968f-66r5-5v74/GHSA-968f-66r5-5v74.json
CWE IDs: ["CWE-444"]
Alternative ID: GHSA-968f-66r5-5v74
Finding: F110
Auto approve: 1