CVE-2019-16785

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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
2026-05-17T11:53:57.904850770Z
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": [
        {
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "source": "CPE_FIELD"
        },
        {
            "extracted_events": [
                {
                    "last_affected": "30"
                },
                {
                    "last_affected": "31"
                }
            ],
            "source": "CPE_FIELD",
            "vendor_product": "fedoraproject:fedora",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
            ]
        },
        {
            "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_FIELD",
            "vendor_product": "oracle:communications_cloud_native_core_network_function_cloud_native_environment"
        },
        {
            "extracted_events": [
                {
                    "last_affected": "15"
                }
            ],
            "source": "CPE_FIELD",
            "vendor_product": "redhat:openstack",
            "cpes": [
                "cpe:2.3:a:redhat:openstack:15:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages