Vulnerability from bitnami_vulndb
Published
2024-03-06 10:54
Modified
2025-04-03 14:40
Summary
Details

An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "haproxy",
        "purl": "pkg:bitnami/haproxy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.2.16"
            },
            {
              "introduced": "2.3.0"
            },
            {
              "fixed": "2.3.13"
            },
            {
              "introduced": "2.4.0"
            },
            {
              "fixed": "2.4.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-39242"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.",
  "id": "BIT-haproxy-2021-39242",
  "modified": "2025-04-03T14:40:37.652Z",
  "published": "2024-03-06T10:54:26.008Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=b5d2b9e154d78e4075db163826c5e0f6d31b2ab1"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ALECUZDIMT5FYGP6V6PVSI4BKVZTZWN/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPNY4WZIQUAUOCLIMUPC37AQWNXTWIQM/"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4960"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg41041.html"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39242"
    }
  ],
  "schema_version": "1.5.0"
}


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Detection rules are retrieved from Rulezet.