{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-0836", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2024-08-02T05:24:34.530Z", "dateReserved": "2023-02-14T00:00:00", "datePublished": "2023-03-29T00:00:00"}, "containers": {"cna": {"providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2023-04-14T00:00:00"}, "descriptions": [{"lang": "en", "value": "An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. Sensitive data may be disclosed to configured FastCGI backends in an unexpected way."}], "affected": [{"vendor": "n/a", "product": "HAProxy", "versions": [{"version": "HAProxy 2.8, HAProxy 2.7.1, HAProxy 2.6.8, HAProxy 2.5.11, HAProxy 2.4.21, HAProxy 2.2.27", "status": "affected"}]}], "references": [{"url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commitdiff%3Bh=2e6bf0a"}, {"name": "DSA-5388", "tags": ["vendor-advisory"], "url": "https://www.debian.org/security/2023/dsa-5388"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-200", "cweId": "CWE-200"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T05:24:34.530Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commitdiff%3Bh=2e6bf0a", "tags": ["x_transferred"]}, {"name": "DSA-5388", "tags": ["vendor-advisory", "x_transferred"], "url": "https://www.debian.org/security/2023/dsa-5388"}]}]}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*", "matchCriteriaId": "2716FE42-E573-4714-81AD-6C282F19D4DB", "versionEndExcluding": "2.2.27", "versionStartIncluding": "2.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*", "matchCriteriaId": "A7A06FF0-94D5-4414-9089-5E8EDCF28FB2", "versionEndIncluding": "2.4.21", "versionStartIncluding": "2.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*", "matchCriteriaId": "E793E6B3-4384-4E14-95F0-4A9764694BD7", "versionEndIncluding": "2.5.11", "versionStartIncluding": "2.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*", "matchCriteriaId": "403E881D-2546-4324-AD6A-C1F96D66EF7C", "versionEndIncluding": "2.6.8", "versionStartIncluding": "2.6.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:haproxy:haproxy:2.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "B917864F-A221-453D-9A8A-A5E6F2923894", "vulnerable": true}, {"criteria": "cpe:2.3:a:haproxy:haproxy:2.3.0:*:*:*:*:*:*:*", "matchCriteriaId": "64C89E5B-9EEC-4BE8-89C2-E9908B016872", "vulnerable": true}, {"criteria": "cpe:2.3:a:haproxy:haproxy:2.7.0:*:*:*:*:*:*:*", "matchCriteriaId": "C3C053BE-78C8-475F-8D2B-56FAD7B0E0D2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. Sensitive data may be disclosed to configured FastCGI backends in an unexpected way."}], "id": "CVE-2023-0836", "lastModified": "2024-11-21T07:37:55.647", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-03-29T21:15:07.950", "references": [{"source": "secalert@redhat.com", "url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commitdiff%3Bh=2e6bf0a"}, {"source": "secalert@redhat.com", "url": "https://www.debian.org/security/2023/dsa-5388"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commitdiff%3Bh=2e6bf0a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.debian.org/security/2023/dsa-5388"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-459"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Youfu Zhang (Chaitin Security Research Lab) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2023:6496", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "haproxy-0:2.4.22-1.el9", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}], "bugzilla": {"description": "haproxy: data leak via fcgi requests", "id": "2180746", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2180746"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-459", "details": ["An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. Sensitive data may be disclosed to configured FastCGI backends in an unexpected way.", "A flaw was found in HAProxy, which could allow a remote attacker to obtain sensitive information caused by improper initialization when encoding the FCGI_BEGIN_REQUEST record. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information and use this information to launch further attacks against the affected system."], "name": "CVE-2023-0836", "package_state": [{"cpe": "cpe:/a:redhat:ceph_storage:5", "fix_state": "Affected", "package_name": "haproxy", "product_name": "Red Hat Ceph Storage 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "haproxy", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "haproxy", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:openshift:3.11", "fix_state": "Out of support scope", "package_name": "haproxy", "product_name": "Red Hat OpenShift Container Platform 3.11"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Will not fix", "package_name": "haproxy", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Will not fix", "package_name": "rh-haproxy18-haproxy", "product_name": "Red Hat Software Collections"}], "public_date": "2022-12-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-0836\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-0836\nhttps://git.haproxy.org/?p=haproxy.git;a=commitdiff;h=2e6bf0a"], "threat_severity": "Moderate", "upstream_fix": "HAProxy 2.8, HAProxy 2.7.1, HAProxy 2.6.8, HAProxy 2.5.11, HAProxy 2.4.21, HAProxy 2.2.27"}