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{"affected_release": [{"advisory": "RHSA-2020:0720", "cpe": "cpe:/a:redhat:openstack:15::el8", "impact": "low", "package": "python-waitress-0:1.4.2-1.el8ost", "product_name": "Red Hat OpenStack Platform 15.0 (Stein)", "release_date": "2020-03-05T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/clair-rhel8:v3.4.0-25", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-bridge-operator-bundle:v3.4.0-3", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-bridge-operator-rhel8:v3.4.0-17", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-builder-qemu-rhcos-rhel8:v3.4.0-17", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-builder-rhel8:v3.4.0-18", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-container-security-operator-bundle:v3.4.0-2", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-container-security-operator-rhel8:v3.4.0-2", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-openshift-bridge-rhel8-operator:v3.4.0-17", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-operator-bundle:v3.4.0-89", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-operator-rhel8:v3.4.0-132", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}, {"advisory": "RHSA-2021:0420", "cpe": "cpe:/a:redhat:quay:3::el8", "impact": "low", "package": "quay/quay-rhel8:v3.4.0-51", "product_name": "Red Hat Quay 3", "release_date": "2021-02-04T00:00:00Z"}], "bugzilla": {"description": "waitress: HTTP request smuggling through invalid Transfer-Encoding", "id": "1791415", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1791415"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N", "status": "verified"}, "cwe": "CWE-444", "details": ["Waitress through version 1.3.1 would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with the inner-most encoding first, followed by any further transfer codings, ending with chunked. Requests sent with: \"Transfer-Encoding: gzip, chunked\" would incorrectly get ignored, and the request would use a Content-Length header instead to determine the body size of the HTTP message. This could allow for Waitress to treat a single request as multiple requests in the case of HTTP pipelining. This issue is fixed in Waitress 1.4.0.", "An HTTP-interpretation flaw was found in waitress which did not properly validate incoming HTTP headers. When parsing the Transfer-Encoding header, waitress would look only for a single string value. According to the HTTP standard, Transfer-Encoding should be a comma-separated list, with the inner-most encoding first, followed by any further transfer codings, ending with 'chunked'. Because of this flaw, requests sent with: \"Transfer-Encoding: gzip, chunked\" would get ignored, and waitress would use the Content-Length header instead to determine the body size of the HTTP message. A remote attacker could exploit this flaw to force waitress to accept potentially bad HTTP requests or treat a single request as multiple requests in the case of HTTP pipelining."], "name": "CVE-2019-16786", "package_state": [{"cpe": "cpe:/a:redhat:ceph_storage:3", "fix_state": "Affected", "impact": "low", "package_name": "python-waitress", "product_name": "Red Hat Ceph Storage 3"}, {"cpe": "cpe:/a:redhat:ceph_storage:4", "fix_state": "Affected", "impact": "low", "package_name": "python-waitress", "product_name": "Red Hat Ceph Storage 4"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Will not fix", "impact": "low", "package_name": "python-waitress", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}, {"cpe": "cpe:/a:redhat:openstack:16", "fix_state": "Affected", "impact": "low", "package_name": "python-waitress", "product_name": "Red Hat OpenStack Platform 16 (Train)"}], "public_date": "2019-12-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-16786\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-16786\nhttps://docs.pylonsproject.org/projects/waitress/en/latest/#id6"], "statement": "All affected Red Hat products ship but do not use the flawed version of python-waitress. The impact for these products is therefore rated as having a security impact of Low.\nIn Red Hat OpenStack Platform 13, because the flawed code is not used and the fix would require a substantial amount of development, no update will be provided at this time for the RHOSP13 python-waitress package.", "threat_severity": "Important", "upstream_fix": "waitress 1.4.0"}