QID 983109

QID 983109: Python (pip) Security Update for waitress (GHSA-968f-66r5-5v74)

Security update has been released for waitress to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

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

  • CVSS V3 rated as Critical - 8.2 severity.
  • CVSS V2 rated as High - 6.4 severity.
    • Solution
    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.Workaround:
    There are no work-arounds, upgrading to Waitress 1.4.2 is highly recommended.
    Vendor References

    CVEs related to QID 983109

    CVE-2019-16789 |
    Software Advisories
    Advisory ID Software Component Link
    GHSA-968f-66r5-5v74 waitress URL Logo github.com/advisories/GHSA-968f-66r5-5v74
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