usn-5063-1
Vulnerability from osv_ubuntu
Published
2021-09-08 11:06
Modified
2026-02-10 04:42
Summary
haproxy vulnerabilities
Details

Ori Hollander discovered that HAProxy incorrectly handled HTTP header name length encoding. A remote attacker could possibly use this issue to inject a duplicate content-length header and perform request smuggling attacks.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-40346",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "haproxy",
            "binary_version": "2.0.13-2ubuntu0.3"
          },
          {
            "binary_name": "vim-haproxy",
            "binary_version": "2.0.13-2ubuntu0.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "haproxy",
        "purl": "pkg:deb/ubuntu/haproxy@2.0.13-2ubuntu0.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.13-2ubuntu0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.5-1",
        "2.0.8-1",
        "2.0.9-1",
        "2.0.10-1",
        "2.0.10-1ubuntu1",
        "2.0.11-1ubuntu1",
        "2.0.12-1ubuntu2",
        "2.0.13-1ubuntu2",
        "2.0.13-2",
        "2.0.13-2ubuntu0.1",
        "2.0.13-2ubuntu0.2"
      ]
    }
  ],
  "aliases": [],
  "details": "Ori Hollander discovered that HAProxy incorrectly handled HTTP header name\nlength encoding. A remote attacker could possibly use this issue to inject\na duplicate content-length header and perform request smuggling attacks.\n",
  "id": "USN-5063-1",
  "modified": "2026-02-10T04:42:18Z",
  "published": "2021-09-08T11:06:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5063-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-40346"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "haproxy vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-40346"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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