CVE-2019-19330

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*", "matchCriteriaId": "9FB4A64D-7A83-4A92-9F0B-0450A822029F", "versionEndExcluding": "2.0.10", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*", "matchCriteriaId": "CD783B0C-9246-47D9-A937-6144FE8BFF0F", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*", "matchCriteriaId": "A31C8344-3E02-4EB8-8BD8-4C84B7959624", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks."}, {"lang": "es", "value": "La implementaci\u00f3n de HTTP/2 en HAProxy versiones anteriores a la versi\u00f3n 2.0.10, maneja inapropiadamente los encabezados, como es demostrado por el retorno de carro (CR, ASCII 0xd), salto de l\u00ednea (LF, ASCII 0xa) y el car\u00e1cter cero (NUL, ASCII 0x0), tambi\u00e9n se conoce como Ataques de Encapsulaci\u00f3n Intermedia ."}], "id": "CVE-2019-19330", "lastModified": "2026-06-17T02:26:30.810", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-11-27T16:15:11.720", "references": [{"source": "cve@mitre.org", "url": "https://git.haproxy.org/?p=haproxy-2.0.git%3Ba=commit%3Bh=ac198b92d461515551b95daae20954b3053ce87e"}, {"source": "cve@mitre.org", "url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=146f53ae7e97dbfe496d0445c2802dd0a30b0878"}, {"source": "cve@mitre.org", "url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=54f53ef7ce4102be596130b44c768d1818570344"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://seclists.org/bugtraq/2019/Nov/45"}, {"source": "cve@mitre.org", "url": "https://security.gentoo.org/glsa/202004-01"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://tools.ietf.org/html/rfc7540#section-10.3"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/4212-1/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": 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Advisory"], "url": "https://usn.ubuntu.com/4212-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2019/dsa-4577"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2020:1725", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "haproxy-0:1.8.23-3.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-28T00:00:00Z"}, {"advisory": "RHSA-2020:1287", "cpe": "cpe:/a:redhat:openshift:3.11::el7", "package": "haproxy-0:1.8.23-3.el7", "product_name": "Red Hat OpenShift Container Platform 3.11", "release_date": "2020-04-07T00:00:00Z"}, {"advisory": "RHSA-2020:1936", "cpe": "cpe:/a:redhat:openshift:4.4::el7", "package": "haproxy-0:2.0.13-3.el7", "product_name": "Red Hat OpenShift Container Platform 4.4", "release_date": "2020-05-04T00:00:00Z"}, {"advisory": "RHSA-2020:2265", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-haproxy18-haproxy-0:1.8.24-2.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2020-05-26T00:00:00Z"}, {"advisory": "RHSA-2020:2265", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-haproxy18-haproxy-0:1.8.24-2.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS", "release_date": "2020-05-26T00:00:00Z"}, {"advisory": "RHSA-2020:2265", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-haproxy18-haproxy-0:1.8.24-2.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2020-05-26T00:00:00Z"}], "bugzilla": {"description": "haproxy: HTTP/2 implementation vulnerable to intermediary encapsulation attacks", "id": "1777584", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1777584"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "status": "verified"}, "cwe": "CWE-20", "details": ["The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks."], "name": "CVE-2019-19330", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "haproxy", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "haproxy", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2019-11-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-19330\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-19330"], "statement": "Support for HTTP/2 protocol was added to haproxy in version 1.8, therefore previous versions are not affected by this flaw.\nThe version of haproxy shipped in OpenShift Container Platform 4 contains the vulnerable code, however exploitation requires setting ROUTER_USE_HTTP2 in the OpenShift Ingress Operator, which is not currently possible. The impact of this vulnerability is therefore reduced in OpenShift Container Platform 4 to Low.", "threat_severity": "Moderate"}

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