OESA-2021-1333 (CVE-2021-39240)

Vulnerability from osv_openeuler – Published: 2021-09-03 11:04 – Updated: 2026-08-06 11:04 – Source website
VLAI
Summary
haproxy security update
Details

HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world's most visited ones.

Security Fix(es):

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 does not ensure that the scheme and path portions of a URI have the expected characters. For example, the authority field (as observed on a target HTTP/2 server) might differ from what the routing rules were intended to achieve.(CVE-2021-39240)

An issue was discovered in HAProxy 2.0 before 2.0.24, 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. An HTTP method name may contain a space followed by the name of a protected resource. It is possible that a server would interpret this as a request for that protected resource, such as in the "GET /admin? HTTP/1.1 /static/images HTTP/1.1" example.(CVE-2021-39241)

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.(CVE-2021-39242)

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "haproxy-debuginfo-2.2.16-1.oe1.aarch64.rpm",
          "haproxy-debugsource-2.2.16-1.oe1.aarch64.rpm",
          "haproxy-2.2.16-1.oe1.aarch64.rpm"
        ],
        "noarch": [
          "haproxy-help-2.2.16-1.oe1.noarch.rpm"
        ],
        "src": [
          "haproxy-2.2.16-1.oe1.src.rpm"
        ],
        "x86_64": [
          "haproxy-debuginfo-2.2.16-1.oe1.x86_64.rpm",
          "haproxy-debugsource-2.2.16-1.oe1.x86_64.rpm",
          "haproxy-2.2.16-1.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "haproxy",
        "purl": "pkg:rpm/openEuler/haproxy\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.16-1.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "haproxy-debuginfo-2.2.16-1.oe1.aarch64.rpm",
          "haproxy-debugsource-2.2.16-1.oe1.aarch64.rpm",
          "haproxy-2.2.16-1.oe1.aarch64.rpm"
        ],
        "noarch": [
          "haproxy-help-2.2.16-1.oe1.noarch.rpm"
        ],
        "src": [
          "haproxy-2.2.16-1.oe1.src.rpm"
        ],
        "x86_64": [
          "haproxy-2.2.16-1.oe1.x86_64.rpm",
          "haproxy-debugsource-2.2.16-1.oe1.x86_64.rpm",
          "haproxy-debuginfo-2.2.16-1.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP2",
        "name": "haproxy",
        "purl": "pkg:rpm/openEuler/haproxy\u0026distro=openEuler-20.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.16-1.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world\u0026apos;s most visited ones.\r\n\r\nSecurity Fix(es):\r\n\r\nAn 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 does not ensure that the scheme and path portions of a URI have the expected characters. For example, the authority field (as observed on a target HTTP/2 server) might differ from what the routing rules were intended to achieve.(CVE-2021-39240)\r\n\r\nAn issue was discovered in HAProxy 2.0 before 2.0.24, 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. An HTTP method name may contain a space followed by the name of a protected resource. It is possible that a server would interpret this as a request for that protected resource, such as in the \u0026quot;GET /admin? HTTP/1.1 /static/images HTTP/1.1\u0026quot; example.(CVE-2021-39241)\r\n\r\nAn 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.(CVE-2021-39242)",
  "id": "OESA-2021-1333",
  "modified": "2026-08-06T11:04:36Z",
  "published": "2021-09-03T11:04:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1333"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39240"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39241"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39242"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "haproxy security update",
  "upstream": [
    "CVE-2021-39240",
    "CVE-2021-39241",
    "CVE-2021-39242"
  ]
}



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