{
  "threat_severity" : "Moderate",
  "public_date" : "2022-12-09T00:00:00Z",
  "bugzilla" : {
    "description" : "haproxy: data leak via fcgi requests",
    "id" : "2180746",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2180746"
  },
  "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." ],
  "acknowledgement" : "Red Hat would like to thank Youfu Zhang (Chaitin Security Research Lab) for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6496",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "haproxy-0:2.4.22-1.el9"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Ceph Storage 5",
    "fix_state" : "Affected",
    "package_name" : "haproxy",
    "cpe" : "cpe:/a:redhat:ceph_storage:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "haproxy",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "haproxy",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 3.11",
    "fix_state" : "Out of support scope",
    "package_name" : "haproxy",
    "cpe" : "cpe:/a:redhat:openshift:3.11"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Will not fix",
    "package_name" : "haproxy",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat Software Collections",
    "fix_state" : "Will not fix",
    "package_name" : "rh-haproxy18-haproxy",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3"
  } ],
  "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" ],
  "name" : "CVE-2023-0836",
  "csaw" : false
}