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{"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"}