{
  "id": "CVE-2023-0836",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2023-03-29T21:15:07.950",
  "lastModified": "2023-11-07T04:01:33.540",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. Sensitive data may be disclosed to configured FastCGI backends in an unexpected way."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-459"
        }
      ]
    },
    {
      "source": "53f830b8-0a3f-465b-8143-3b8a9948e749",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.2.0",
              "versionEndExcluding": "2.2.27",
              "matchCriteriaId": "2716FE42-E573-4714-81AD-6C282F19D4DB"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.4.0",
              "versionEndIncluding": "2.4.21",
              "matchCriteriaId": "A7A06FF0-94D5-4414-9089-5E8EDCF28FB2"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.5.0",
              "versionEndIncluding": "2.5.11",
              "matchCriteriaId": "E793E6B3-4384-4E14-95F0-4A9764694BD7"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.6.0",
              "versionEndIncluding": "2.6.8",
              "matchCriteriaId": "403E881D-2546-4324-AD6A-C1F96D66EF7C"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:haproxy:haproxy:2.1.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "B917864F-A221-453D-9A8A-A5E6F2923894"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:haproxy:haproxy:2.3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "64C89E5B-9EEC-4BE8-89C2-E9908B016872"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:haproxy:haproxy:2.7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C3C053BE-78C8-475F-8D2B-56FAD7B0E0D2"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commitdiff%3Bh=2e6bf0a",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.debian.org/security/2023/dsa-5388",
      "source": "secalert@redhat.com"
    }
  ]
}