{
  "threat_severity" : "Important",
  "public_date" : "2024-04-15T00:00:00Z",
  "bugzilla" : {
    "description" : "python-gunicorn: HTTP Request Smuggling due to improper validation of Transfer-Encoding headers",
    "id" : "2275280",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2275280"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-444",
  "details" : [ "Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks including cache poisoning, session manipulation, and data exposure.", "An HTTP Request Smuggling vulnerability was found in Gunicorn. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks, including cache poisoning, session manipulation, and data exposure." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Ansible Automation Platform 2.4 for RHEL 8",
    "release_date" : "2024-06-10T00:00:00Z",
    "advisory" : "RHSA-2024:3781",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2.4::el8",
    "package" : "python3x-gunicorn-0:22.0.0-1.el8ap"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2.4 for RHEL 9",
    "release_date" : "2024-06-10T00:00:00Z",
    "advisory" : "RHSA-2024:3781",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2.4::el9",
    "package" : "python-gunicorn-0:22.0.0-1.el9ap"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4.12",
    "release_date" : "2024-06-12T00:00:00Z",
    "advisory" : "RHSA-2024:3713",
    "cpe" : "cpe:/a:redhat:openshift:4.12::el9",
    "package" : "openshift4/ose-ironic-rhel9:v4.12.0-202406060836.p0.g9a3e609.assembly.stream.el9"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4.13",
    "release_date" : "2024-05-23T00:00:00Z",
    "advisory" : "RHSA-2024:2875",
    "cpe" : "cpe:/a:redhat:openshift:4.13::el9",
    "package" : "openshift4/ose-ironic-rhel9:v4.13.0-202405072309.p0.g881e793.assembly.stream.el9"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4.14",
    "release_date" : "2024-05-30T00:00:00Z",
    "advisory" : "RHSA-2024:3331",
    "cpe" : "cpe:/a:redhat:openshift:4.14::el9",
    "package" : "openshift4/ose-ironic-rhel9:v4.14.0-202405161337.p0.g62ee6d0.assembly.stream.el9"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4.15",
    "release_date" : "2024-05-29T00:00:00Z",
    "advisory" : "RHSA-2024:3327",
    "cpe" : "cpe:/a:redhat:openshift:4.15::el9",
    "package" : "openshift4/ose-ironic-rhel9:v4.15.0-202405161507.p0.ge2415c8.assembly.stream.el9"
  }, {
    "product_name" : "Red Hat OpenStack Platform 16.2",
    "release_date" : "2024-06-24T00:00:00Z",
    "advisory" : "RHSA-2024:4054",
    "cpe" : "cpe:/a:redhat:openstack:16.2::el8",
    "package" : "python-gunicorn-0:19.9.0-11.el8ost"
  }, {
    "product_name" : "Red Hat OpenStack Platform 17.1 for RHEL 9",
    "release_date" : "2024-05-22T00:00:00Z",
    "advisory" : "RHSA-2024:2727",
    "cpe" : "cpe:/a:redhat:openstack:17.1::el9",
    "package" : "python-gunicorn-0:20.0.4-7.el9ost"
  }, {
    "product_name" : "Red Hat Satellite 6.15 for RHEL 8",
    "release_date" : "2024-10-10T00:00:00Z",
    "advisory" : "RHSA-2024:7987",
    "cpe" : "cpe:/a:redhat:satellite:6.15::el8",
    "package" : "python-gunicorn-0:22.0.0-1.el8pc"
  }, {
    "product_name" : "Red Hat Satellite 6.15 for RHEL 8",
    "release_date" : "2024-10-10T00:00:00Z",
    "advisory" : "RHSA-2024:7987",
    "cpe" : "cpe:/a:redhat:satellite_capsule:6.15::el8",
    "package" : "python-gunicorn-0:22.0.0-1.el8pc"
  }, {
    "product_name" : "RHUI 4 for RHEL 8",
    "release_date" : "2025-02-12T00:00:00Z",
    "advisory" : "RHSA-2025:1335",
    "cpe" : "cpe:/a:redhat:rhui:4::el8",
    "package" : "python-gunicorn-0:22.0.0-1.0.1.el8ui"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Discovery 1",
    "fix_state" : "Not affected",
    "package_name" : "discovery-server-container",
    "cpe" : "cpe:/a:redhat:discovery:1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Will not fix",
    "package_name" : "python-gunicorn",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat OpenStack Platform 16.1",
    "fix_state" : "Out of support scope",
    "package_name" : "python-gunicorn",
    "cpe" : "cpe:/a:redhat:openstack:16.1"
  }, {
    "product_name" : "Red Hat OpenStack Platform 18.0",
    "fix_state" : "Affected",
    "package_name" : "python-gunicorn",
    "cpe" : "cpe:/a:redhat:openstack:18.0"
  }, {
    "product_name" : "Red Hat Quay 3",
    "fix_state" : "Affected",
    "package_name" : "quay/quay-rhel8",
    "cpe" : "cpe:/a:redhat:quay:3"
  }, {
    "product_name" : "Red Hat Storage 3",
    "fix_state" : "Out of support scope",
    "package_name" : "graphite-web",
    "cpe" : "cpe:/a:redhat:storage:3"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-1135\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-1135\nhttps://github.com/advisories/GHSA-w3h3-4rj7-4ph4\nhttps://github.com/benoitc/gunicorn/commit/ac29c9b0a758d21f1e0fb3b3457239e523fa9f1d\nhttps://huntr.com/bounties/22158e34-cfd5-41ad-97e0-a780773d96c1" ],
  "name" : "CVE-2024-1135",
  "mitigation" : {
    "value" : "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.",
    "lang" : "en:us"
  },
  "csaw" : false
}