Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1qN2o2LTdoZngtNTUyMs4AAjYE

Inconsistent Interpretation of HTTP Requests in Waitress

Waitress through version 1.3.1 allows request smuggling by sending the Content-Length header twice. Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. If two Content-Length headers are sent in a single request, Waitress would treat the request as having no body, thereby treating the body of the request as a new request in HTTP pipelining. This issue is fixed in Waitress 1.4.0.

Permalink: https://github.com/advisories/GHSA-j7j6-7hfx-5522
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1qN2o2LTdoZngtNTUyMs4AAjYE
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: almost 2 years ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Percentage: 0.00152
EPSS Percentile: 0.51832

Identifiers: GHSA-j7j6-7hfx-5522, CVE-2019-16792
References:

• https://github.com/Pylons/waitress/security/advisories/GHSA-4ppp-gpcr-7qf6
• https://nvd.nist.gov/vuln/detail/CVE-2019-16792
• https://github.com/Pylons/waitress/commit/575994cd42e83fd772a5f7ec98b2c56751bd3f65
• https://docs.pylonsproject.org/projects/waitress/en/latest/#security-fixes
• https://lists.debian.org/debian-lts-announce/2022/05/msg00011.html
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://github.com/advisories/GHSA-j7j6-7hfx-5522

Repository: https://github.com/Pylons/waitress
Blast Radius: 33.0

Affected Packages