high
8.2
CWE
444
Advisory Published
Advisory Published
Updated

CVE-2019-16789

First published: Thu Dec 26 2019(Updated: )

### 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)

Credit: security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
pip/waitress<1.4.2
1.4.2
redhat/waitress<1.4.1
1.4.1
redhat/python-waitress<0:1.4.2-1.el8
0:1.4.2-1.el8
Agendaless Waitress<=1.4.0
Oracle Communications Cloud Native Core Network Function Cloud Native Environment=1.10.0
Debian Debian Linux=9.0
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Redhat Openstack=15
debian/waitress
1.2.0~b2-2+deb10u1
1.4.4-1.1+deb11u1
2.1.2-2

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2019-16789.

  • What is the impact of this vulnerability?

    The impact of this vulnerability is that it allows an attacker to smuggle requests or split a HTTP request with invalid data.

  • What is the severity of CVE-2019-16789?

    The severity of CVE-2019-16789 is rated as high with a severity value of 8.2.

  • How can I fix CVE-2019-16789 in Waitress?

    To fix CVE-2019-16789 in Waitress, update to version 1.4.2 or higher.

  • Where can I find more information about CVE-2019-16789?

    You can find more information about CVE-2019-16789 at the following references: [GitHub Advisory](https://github.com/Pylons/waitress/security/advisories/GHSA-968f-66r5-5v74) and [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-16789).

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