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  5. CVE-2019-16789

CVE-2019-16789: HTTP Request Smuggling in Waitress: Invalid whitespace characters in headers (Follow-up)

January 6, 2020 (updated November 19, 2024)

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

References

  • access.redhat.com/errata/RHSA-2020:0720
  • docs.pylonsproject.org/projects/waitress/en/latest/
  • github.com/Pylons/waitress
  • github.com/Pylons/waitress/commit/11d9e138125ad46e951027184b13242a3c1de017
  • github.com/Pylons/waitress/commit/ddb65b489d01d696afa1695b75fdd5df3e4ffdf8
  • github.com/Pylons/waitress/security/advisories/GHSA-968f-66r5-5v74
  • github.com/advisories/GHSA-968f-66r5-5v74
  • github.com/github/advisory-review/pull/14604
  • github.com/pypa/advisory-database/tree/main/vulns/waitress/PYSEC-2019-138.yaml
  • lists.debian.org/debian-lts-announce/2022/05/msg00011.html
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GVDHR2DNKCNQ7YQXISJ45NT4IQDX3LJ7
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYEOTGWJZVKPRXX2HBNVIYWCX73QYPM5
  • nvd.nist.gov/vuln/detail/CVE-2019-16789
  • www.oracle.com/security-alerts/cpuapr2022.html

Code Behaviors & Features

Detect and mitigate CVE-2019-16789 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 1.4.2

Fixed versions

  • 1.4.2

Solution

Upgrade to version 1.4.2 or above.

Impact 8.2 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Source file

pypi/waitress/CVE-2019-16789.yml

Spotted a mistake? Edit the file on GitLab.

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