CVE-2019-16785
- Source
- https://cve.org/CVERecord?id=CVE-2019-16785
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-16785.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2019-16785
- Aliases
- Downstream
- Related
- Published
- 2019-12-20T23:15:11.167Z
- Modified
- 2026-06-05T12:00:22.762433096Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR." Unfortunately if a front-end server does not parse header fields with an LF the same way as it does those with a CRLF it can lead to the front-end and the back-end server parsing the same HTTP message in two different ways. This can lead to a potential for HTTP request smuggling/splitting whereby Waitress may see two requests while the front-end server only sees a single HTTP message. This issue is fixed in Waitress 1.4.0.
- Database specific
{ "unresolved_ranges": [ { "vendor_product": "agendaless:waitress", "extracted_events": [ { "last_affected": "1.3.1" } ], "cpes": [ "cpe:2.3:a:agendaless:waitress:*:*:*:*:*:*:*:*" ], "source": "CPE_RANGE" }, { "vendor_product": "debian:debian_linux", "extracted_events": [ { "last_affected": "9.0" } ], "cpes": [ "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*" ], "source": "CPE_STRING" }, { "vendor_product": "fedoraproject:fedora", "extracted_events": [ { "last_affected": "30" }, { "last_affected": "31" } ], "cpes": [ "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*" ], "source": "CPE_STRING" }, { "vendor_product": "oracle:communications_cloud_native_core_network_function_cloud_native_environment", "extracted_events": [ { "last_affected": "1.10.0" } ], "cpes": [ "cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*" ], "source": "CPE_STRING" }, { "vendor_product": "redhat:openstack", "extracted_events": [ { "last_affected": "15" } ], "cpes": [ "cpe:2.3:a:redhat:openstack:15:*:*:*:*:*:*:*" ], "source": "CPE_STRING" }, { "extracted_events": [ { "fixed": "1.3.1" } ], "source": "DESCRIPTION" } ] }- References
-
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GVDHR2DNKCNQ7YQXISJ45NT4IQDX3LJ7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYEOTGWJZVKPRXX2HBNVIYWCX73QYPM5/
- https://access.redhat.com/errata/RHSA-2020:0720
- https://docs.pylonsproject.org/projects/waitress/en/latest/#security-fixes
- https://lists.debian.org/debian-lts-announce/2022/05/msg00011.html
- https://github.com/Pylons/waitress/commit/8eba394ad75deaf9e5cd15b78a3d16b12e6b0eba
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://github.com/Pylons/waitress/security/advisories/GHSA-pg36-wpm5-g57p