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

An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "haproxy",
        "purl": "pkg:bitnami/haproxy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.0.25"
            },
            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.2.17"
            },
            {
              "introduced": "2.3.0"
            },
            {
              "fixed": "2.3.14"
            },
            {
              "introduced": "2.4.0"
            },
            {
              "fixed": "2.4.4"
            }
          ],
          "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-2021-40346"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.",
  "id": "BIT-haproxy-2021-40346",
  "modified": "2025-04-03T14:40:37.652Z",
  "published": "2024-03-06T10:54:15.896Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.haproxy.org/?p=haproxy.git"
    },
    {
      "type": "WEB",
      "url": "https://github.com/haproxy/haproxy/commit/3b69886f7dcc3cfb3d166309018e6cfec9ce2c95"
    },
    {
      "type": "WEB",
      "url": "https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r284567dd7523f5823e2ce995f787ccd37b1cc4108779c50a97c79120%40%3Cdev.cloudstack.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r8a58fd7a29808e5d27ee56877745e58dc4bb041b9af94601554e2a5a%40%3Cdev.cloudstack.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7V2IYO22LWVBGUNZWVKNTMDV4KINLFO/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXTSBY2TEAXWZVFQM3CXHJFRONX7PEMN/"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4968"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/haproxy%40formilux.org"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg41114.html"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40346"
    }
  ],
  "schema_version": "1.5.0"
}


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Detection rules are retrieved from Rulezet.